v1.2.3 新增 测速后 直接显示结果 功能

.gitignore

@@ -0,0 +1,2 @@
+dist
+Releases

IPRangeLoader.go

@@ -7,8 +7,8 @@ import (
 	"os"
 )
 
-func loadFirstIPOfRangeFromFile() []net.IPAddr {
-	file, err := os.Open("ip.txt")
+func loadFirstIPOfRangeFromFile(ipFile string) []net.IPAddr {
+	file, err := os.Open(ipFile)
 	if err != nil {
 		log.Fatal(err)
 	}
@@ -21,7 +21,7 @@ func loadFirstIPOfRangeFromFile() []net.IPAddr {
 		if err != nil {
 			log.Fatal(err)
 		}
-		firstIP[15]=ipEndWith
+		firstIP[15] = ipEndWith
 		for IPRange.Contains(firstIP) {
 			firstIPCopy := make([]byte, len(firstIP))
 			copy(firstIPCopy, firstIP)

LICENSE

@@ -0,0 +1,674 @@
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+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<https://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<https://www.gnu.org/licenses/why-not-lgpl.html>.

README.md

@@ -1,10 +1,97 @@
-# CloudflareScanner
+# XIU2/CloudflareSpeedTest
 
-本项目可以测试Cloudflare节点接入速度
+[![Go Version](https://img.shields.io/github/go-mod/go-version/XIU2/CloudflareSpeedTest.svg?style=flat-square&label=Go&color=00ADD8)](https://github.com/XIU2/CloudflareSpeedTest/blob/master/go.mod)
+[![Release Version](https://img.shields.io/github/v/release/XIU2/CloudflareSpeedTest.svg?style=flat-square&label=Release&color=1784ff)](https://github.com/XIU2/CloudflareSpeedTest/releases/latest)
+[![GitHub license](https://img.shields.io/github/license/XIU2/CloudflareSpeedTest.svg?style=flat-square&label=License&color=f38020)](https://github.com/XIU2/CloudflareSpeedTest/blob/master/LICENSE)
+[![GitHub Star](https://img.shields.io/github/stars/XIU2/CloudflareSpeedTest.svg?style=flat-square&label=Star&color=f38020)](https://github.com/XIU2/CloudflareSpeedTest/stargazers)
+[![GitHub Fork](https://img.shields.io/github/forks/XIU2/CloudflareSpeedTest.svg?style=flat-square&label=Fork&color=f38020)](https://github.com/XIU2/CloudflareSpeedTest/network/members)
 
-程序运行完毕后，结果会保存在当前目录的`result.csv`下
+国外很多网站都在使用 Cloudflare CDN，但分配给中国访客的 IP 并不友好。  
+虽然 Cloudflare 公开了所有 [IP 段](https://www.cloudflare.com/ips/) ，但想要在这么多 IP 中找到适合自己的，怕是要累死，所以就有了这个软件。  
 
-## 注意事项
-#### 协程数请不要调过1000，否则容易出现较大误差
-#### 编译选项为 `go build`
-#### 您可在release界面下载或编译运行
+该软件可以**测试 Cloudflare CDN 所有 IP 的延迟和速度，获得最快 IP**！  
+你可以将 IP 添加到 `Hosts` 文件中，以提高访问使用 Cloudflare CDN 服务的国外网站速度！  
+
+****
+### 快速使用
+
+1. 下载编译好的可执行文件 [蓝奏云](https://www.lanzoux.com/b0742hkxe) / [Github](https://github.com/XIU2/CloudflareSpeedTest/releases) 并解压。  
+2. 双击运行 `CloudflareST.exe`文件（Windows系统），等待测速...  
+
+测速完毕后，会把结果保存在当前目录下的 `result.csv` 文件中，用记事本打开，排序为**延迟由低到高**，每一列用逗号分隔，分别是：  
+```
+IP 地址, 测试次数, 成功次数, 成功比率, 平均延迟, 下载速度 (MB/s)
+104.27.70.18, 4, 4, 1.00, 150.79, 12.89
+```
+选择一个平均延迟与下载速度都不错的 IP 放到 `Hosts` 文件中（指向域名）。  
+
+****
+### 进阶使用
+
+直接双击运行使用的是默认参数，如果想要测试速度更快、测试结果更全面，可以自定义参数。  
+``` cmd
+C:\>CloudflareST.exe -h
+
+CloudflareSpeedTest
+测试 Cloudflare CDN 所有 IP 的延迟和速度，获取最快 IP！
+https://github.com/XIU2/CloudflareSpeedTest
+
+参数：
+    -n 500
+        测速线程数量；数值越大速度越快，请勿超过 1000(结果误差大)；(默认 500)
+    -t 4
+        延迟测速次数；单个 IP 测速次数，为 1 时将过滤丢包的IP，TCP协议；(默认 4)
+    -dn 20
+        下载测速数量；延迟测速并排序后，从最低延迟起下载测速数量，请勿太多(速度慢)；(默认 20)
+    -dt 10
+        下载测速时间；单个 IP 测速最长时间，单位：秒；(默认 10)
+    -p 20
+        直接显示结果；测速后直接显示指定数量的结果，为 -1 时不显示结果直接退出；(默认 20)
+    -f ip.txt
+        IP 数据文件；相对/绝对路径，如包含空格请加上引号；支持其他 CDN IP段，记得禁用下载测速；(默认 ip.txt)
+    -o result.csv
+        输出结果文件；相对/绝对路径，如包含空格请加上引号；允许 .txt 等后缀；(默认 result.csv)
+    -dd
+        禁用下载测速；如果带上该参数就是禁用下载测速；(默认 启用)
+    -v
+        打印程序版本
+    -h
+        打印帮助说明
+
+示例：
+    CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p 20
+    CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p -1 -f "ip.txt" -o "result.csv" -dd
+    CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p -1 -f "C:\abc\ip.txt" -o "C:\abc\result.csv" -dd
+```
+
+#### 使用示例
+
+在 CMD 中运行，或者把启动参数添加到快捷方式中。  
+> **注意：** 不需要加上所有参数，按需选择，参数前后顺序随意。  
+
+``` cmd
+# CMD 示例
+CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p 20
+
+# 指定 IP数据文件 及 输出结果文件（相对路径，即当前目录下）
+CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p -1 -f "ip.txt" -o "result.csv" -dd
+
+# 指定 IP数据文件 及 输出结果文件（绝对路径，即 C:\abc\ 目录下）
+CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p -1 -f "C:\abc\ip.txt" -o "C:\abc\result.csv" -dd
+```
+
+``` cmd
+# 快捷方式示例（右键快捷方式 - 目标）
+## 如果有引号就放在引号外面，记得引号和 - 之间有空格。
+"D:\Program Files\CloudflareST\CloudflareST.exe" -n 500 -t 4 -dn 20 -dt 10 -p 20
+```
+
+****
+### 感谢项目
+* https://github.com/Spedoske/CloudflareScanner
+
+意外发现了这个项目，看了之后发现正好解决了我的问题，但是我更喜欢用户命令行方式运行，这样会更方便、有更多使用姿势，于是我临时学了下 Golang 并 Fork 修改了一份命令行方式交互的版本，如果有什么问题可以告诉我，虽然我不一定会~
+
+****
+### 许可证
+The GPL-3.0 License.

go.mod

@@ -1,5 +1,8 @@
-module CloudflareIPScanner
+module CloudflareSpeedTest
 
 go 1.14
 
-require github.com/cheggaaa/pb/v3 v3.0.4
+require (
+	github.com/VividCortex/ewma v1.1.1
+	github.com/cheggaaa/pb/v3 v3.0.4
+)

go.sum

@@ -0,0 +1,17 @@
+github.com/VividCortex/ewma v1.1.1 h1:MnEK4VOv6n0RSY4vtRe3h11qjxL3+t0B8yOL8iMXdcM=
+github.com/VividCortex/ewma v1.1.1/go.mod h1:2Tkkvm3sRDVXaiyucHiACn4cqf7DpdyLvmxzcbUokwA=
+github.com/cheggaaa/pb/v3 v3.0.4 h1:QZEPYOj2ix6d5oEg63fbHmpolrnNiwjUsk+h74Yt4bM=
+github.com/cheggaaa/pb/v3 v3.0.4/go.mod h1:7rgWxLrAUcFMkvJuv09+DYi7mMUYi8nO9iOWcvGJPfw=
+github.com/fatih/color v1.7.0 h1:DkWD4oS2D8LGGgTQ6IvwJJXSL5Vp2ffcQg58nFV38Ys=
+github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
+github.com/mattn/go-colorable v0.1.2 h1:/bC9yWikZXAL9uJdulbSfyVNIR3n3trXl+v8+1sx8mU=
+github.com/mattn/go-colorable v0.1.2/go.mod h1:U0ppj6V5qS13XJ6of8GYAs25YV2eR4EVcfRqFIhoBtE=
+github.com/mattn/go-isatty v0.0.8/go.mod h1:Iq45c/XA43vh69/j3iqttzPXn0bhXyGjM0Hdxcsrc5s=
+github.com/mattn/go-isatty v0.0.10 h1:qxFzApOv4WsAL965uUPIsXzAKCZxN2p9UqdhFS4ZW10=
+github.com/mattn/go-isatty v0.0.10/go.mod h1:qgIWMr58cqv1PHHyhnkY9lrL7etaEgOFcMEpPG5Rm84=
+github.com/mattn/go-runewidth v0.0.7 h1:Ei8KR0497xHyKJPAv59M1dkC+rOZCMBJ+t3fZ+twI54=
+github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+golang.org/x/sys v0.0.0-20190222072716-a9d3bda3a223/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/sys v0.0.0-20191008105621-543471e840be/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9 h1:ZBzSG/7F4eNKz2L3GE9o300RX0Az1Bw5HF7PDraD+qU=
+golang.org/x/sys v0.0.0-20191128015809-6d18c012aee9/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=

main.go

@@ -1,79 +1,161 @@
 package main
 
 import (
-	"encoding/csv"
+	"flag"
 	"fmt"
-	"github.com/cheggaaa/pb/v3"
-	"log"
 	"os"
+	"sort"
 	"sync"
+	"time"
+
+	"github.com/cheggaaa/pb/v3"
 )
 
-func ExportCsv(filePath string, data [][]string) {
-	fp, err := os.Create(filePath)
-	if err != nil {
-		log.Fatalf("创建文件["+filePath+"]句柄失败,%v", err)
-		return
+var version string
+var disableDownload bool
+var ipFile string
+var outputFile string
+var printResult int
+
+func init() {
+	var downloadSecond int64
+	var printVersion bool
+	const help = `
+CloudflareSpeedTest
+测试 Cloudflare CDN 所有 IP 的延迟和速度，获取最快 IP！
+https://github.com/XIU2/CloudflareSpeedTest
+
+参数：
+    -n 500
+        测速线程数量；数值越大速度越快，请勿超过 1000(结果误差大)；(默认 500)
+    -t 4
+        延迟测速次数；单个 IP 测速次数，为 1 时将过滤丢包的IP，TCP协议；(默认 4)
+    -dn 20
+        下载测速数量；延迟测速并排序后，从最低延迟起下载测速数量，请勿太多(速度慢)；(默认 20)
+    -dt 10
+        下载测速时间；单个 IP 测速最长时间，单位：秒；(默认 10)
+    -p 20
+        直接显示结果；测速后直接显示指定数量的结果，为 -1 时不显示结果直接退出；(默认 20)
+    -f ip.txt
+        IP 数据文件；相对/绝对路径，如包含空格请加上引号；支持其他 CDN IP段，记得禁用下载测速；(默认 ip.txt)
+    -o result.csv
+        输出结果文件；相对/绝对路径，如包含空格请加上引号；允许 .txt 等后缀；(默认 result.csv)
+    -dd
+        禁用下载测速；如果带上该参数就是禁用下载测速；(默认 启用)
+    -v
+        打印程序版本
+    -h
+        打印帮助说明
+
+示例：
+    CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p 20
+    CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p -1 -f "ip.txt" -o "result.csv" -dd
+    CloudflareST.exe -n 500 -t 4 -dn 20 -dt 10 -p -1 -f "C:\abc\ip.txt" -o "C:\abc\result.csv" -dd`
+
+	flag.IntVar(&pingRoutine, "n", 500, "测速线程数量")
+	flag.IntVar(&pingTime, "t", 4, "延迟测速次数")
+	flag.IntVar(&downloadTestCount, "dn", 20, "下载测速数量")
+	flag.Int64Var(&downloadSecond, "dt", 10, "下载测速时间")
+	flag.IntVar(&printResult, "p", 20, "直接显示结果")
+	flag.BoolVar(&disableDownload, "dd", false, "禁用下载测速")
+	flag.StringVar(&ipFile, "f", "ip.txt", "IP 数据文件")
+	flag.StringVar(&outputFile, "o", "result.csv", "输出结果文件")
+	flag.BoolVar(&printVersion, "v", false, "打印程序版本")
+
+	downloadTestTime = time.Duration(downloadSecond) * time.Second
+
+	flag.Usage = func() { fmt.Print(help) }
+	flag.Parse()
+	if printVersion {
+		println(version)
+		os.Exit(0)
 	}
-	defer fp.Close()
-	w := csv.NewWriter(fp) //创建一个新的写入文件流
-	w.WriteAll(data)
-	w.Flush()
-}
-
-var pingTime int
-var pingRoutine int
-const ipEndWith uint8 = 1
-type progressEvent int
-const (
-	NoAvailableIPFound progressEvent = iota
-	AvailableIPFound
-	NormalPing
-)
-
-func handleProgressGenerator(pb *pb.ProgressBar)func (e progressEvent){
-	return func(e progressEvent) {
-		switch e {
-		case NoAvailableIPFound:
-			pb.Add(pingTime)
-		case AvailableIPFound:
-			pb.Add(failTime)
-		case NormalPing:
-			pb.Increment()
-		}
+	if pingRoutine <= 0 {
+		pingRoutine = 500
+	}
+	if pingTime <= 0 {
+		pingTime = 4
+	}
+	if downloadTestCount <= 0 {
+		downloadTestCount = 20
+	}
+	if downloadSecond <= 0 {
+		downloadSecond = 10
+	}
+	if printResult == 0 {
+		printResult = 20
+	}
+	if ipFile == "" {
+		ipFile = "ip.txt"
+	}
+	if outputFile == "" {
+		outputFile = "result.csv"
 	}
 }
 
-func handleUserInput(){
-	fmt.Println("请输入扫描协程数(数字越大越快,默认100):")
-	fmt.Scanln(&pingRoutine)
-	if pingRoutine<=0{
-		pingRoutine=100
-	}
-	fmt.Println("请输入tcping次数(默认10):")
-	fmt.Scanln(&pingTime)
-	if pingTime<=0{
-		pingTime=10
-	}
-}
-
-func main(){
-	handleUserInput()
-	ips:=loadFirstIPOfRangeFromFile()
-	pingCount:=len(ips)*pingTime
-	bar := pb.StartNew(pingCount)
+func main() {
+	initipEndWith()                           // 随机数
+	failTime = pingTime                       // 设置接收次数
+	ips := loadFirstIPOfRangeFromFile(ipFile) // 读入IP
+	pingCount := len(ips) * pingTime          // 计算进度条总数（IP*测试次数）
+	bar := pb.Full.Start(pingCount)           // 进度条总数
 	var wg sync.WaitGroup
 	var mu sync.Mutex
-	var data = make([][]string,0)
-	data = append(data,[]string{"IP Address","Ping received","Ping time"})
-	control := make(chan bool,pingRoutine)
-	for _,ip :=range ips{
+	var data = make([]CloudflareIPData, 0)
+
+	fmt.Println("开始延迟测速(TCP)：")
+	control := make(chan bool, pingRoutine)
+	for _, ip := range ips {
 		wg.Add(1)
-		control<-false
-		handleProgress:=handleProgressGenerator(bar)
-		go tcpingGoroutine(&wg,&mu,ip,pingTime, &data,control,handleProgress)
+		control <- false
+		handleProgress := handleProgressGenerator(bar) // 多线程进度条
+		go tcpingGoroutine(&wg, &mu, ip, pingTime, &data, control, handleProgress)
 	}
 	wg.Wait()
 	bar.Finish()
-	ExportCsv("./result.csv",data)
+
+	sort.Sort(CloudflareIPDataSet(data)) // 排序
+
+	// 下载测速
+	if !disableDownload { // 如果禁用下载测速就跳过
+		if len(data) > 0 { // IP数组长度(IP数量) 大于 0 时继续
+			if len(data) < downloadTestCount { // 如果IP数组长度(IP数量) 小于 下载测速次数，则次数改为IP数
+				downloadTestCount = len(data)
+				fmt.Println("\n[信息] IP数量小于下载测速次数，下载测速次数改为IP数。\n")
+			}
+			bar = pb.Simple.Start(downloadTestCount)
+			fmt.Println("开始下载测速：")
+			for i := 0; i < downloadTestCount; i++ {
+				_, speed := DownloadSpeedHandler(data[i].ip)
+				data[i].downloadSpeed = speed
+				bar.Add(1)
+			}
+			bar.Finish()
+		} else {
+			fmt.Println("\n[信息] IP数量为 0，跳过下载测速。")
+		}
+	}
+
+	// 直接输出结果
+	if printResult > 0 { // 如果禁用下载测速就跳过
+		dateString := convertToString(data) // 转为多维数组 [][]String
+		if len(dateString) > 0 {            // IP数组长度(IP数量) 大于 0 时继续
+			if len(dateString) < printResult { // 如果IP数组长度(IP数量) 小于  打印次数，则次数改为IP数量
+				printResult = len(dateString)
+				fmt.Println("\n[信息] IP数量小于显示结果数量，显示结果数量改为IP数量。\n")
+			}
+			fmt.Println("\nIP 地址    \t", "测试次数\t", "成功次数\t", "成功比率\t", "平均延迟\t", "下载速度 (MB/s)")
+			for i := 0; i < printResult; i++ {
+				fmt.Println(dateString[i][0], "\t", dateString[i][1], "\t\t", dateString[i][2], "\t\t", dateString[i][3], "\t\t", dateString[i][4], "\t", dateString[i][5])
+			}
+			fmt.Printf("\n完整内容请查看 %v 文件。请按 回车键 或 Ctrl+C 退出。", outputFile)
+			var pause int
+			fmt.Scanln(&pause)
+		} else {
+			fmt.Println("\n[信息] IP数量为 0，跳过输出结果。")
+		}
+	}
+
+	// 输出结果到文件
+	ExportCsv(outputFile, data)
 }

tcping.go

@@ -1,34 +1,35 @@
 package main
 
 import (
+	"context"
+	"io"
 	"net"
+	"net/http"
 	"strconv"
 	"sync"
 	"time"
+
+	"github.com/VividCortex/ewma"
 )
 
-const defaultTcpPort = 443
-const tcpConnectTimeout = time.Second * 1
-const failTime = 4
-
-//bool connectionSucceed float64 time
-func tcping(ip net.IPAddr) (bool, float64) {
+//bool connectionSucceed float32 time
+func tcping(ip net.IPAddr) (bool, float32) {
 	startTime := time.Now()
 	conn, err := net.DialTimeout("tcp", ip.String()+":"+strconv.Itoa(defaultTcpPort), tcpConnectTimeout)
 	if err != nil {
 		return false, 0
 	} else {
 		var endTime = time.Since(startTime)
-		var duration = float64(endTime.Microseconds()) / 1000.0
+		var duration = float32(endTime.Microseconds()) / 1000.0
 		_ = conn.Close()
 		return true, duration
 	}
 }
 
 //pingReceived pingTotalTime
-func checkConnection(ip net.IPAddr) (int, float64) {
+func checkConnection(ip net.IPAddr) (int, float32) {
 	pingRecv := 0
-	pingTime := 0.0
+	var pingTime float32 = 0.0
 	for i := 1; i <= failTime; i++ {
 		pingSucceed, pingTimeCurrent := tcping(ip)
 		if pingSucceed {
@@ -40,10 +41,10 @@ func checkConnection(ip net.IPAddr) (int, float64) {
 }
 
 //return Success packetRecv averagePingTime specificIPAddr
-func tcpingHandler(ip net.IPAddr, pingCount int, progressHandler func(e progressEvent)) (bool, int, float64, net.IPAddr) {
+func tcpingHandler(ip net.IPAddr, pingCount int, progressHandler func(e progressEvent)) (bool, int, float32, net.IPAddr) {
 	ipCanConnect := false
 	pingRecv := 0
-	pingTime := 0.0
+	var pingTime float32 = 0.0
 	for !ipCanConnect {
 		pingRecvCurrent, pingTimeCurrent := checkConnection(ip)
 		if pingRecvCurrent != 0 {
@@ -68,20 +69,92 @@ func tcpingHandler(ip net.IPAddr, pingCount int, progressHandler func(e progress
 				pingTime += pingTimeCurrent
 			}
 		}
-		return true, pingRecv, pingTime / float64(pingRecv), ip
+		return true, pingRecv, pingTime / float32(pingRecv), ip
 	} else {
 		progressHandler(NoAvailableIPFound)
 		return false, 0, 0, net.IPAddr{}
 	}
 }
 
-func tcpingGoroutine(wg *sync.WaitGroup, mutex *sync.Mutex, ip net.IPAddr, pingCount int, csv *[][]string, control chan bool, progressHandler func(e progressEvent)) {
+func tcpingGoroutine(wg *sync.WaitGroup, mutex *sync.Mutex, ip net.IPAddr, pingCount int, csv *[]CloudflareIPData, control chan bool, progressHandler func(e progressEvent)) {
 	defer wg.Done()
 	success, pingRecv, pingTimeAvg, currentIP := tcpingHandler(ip, pingCount, progressHandler)
 	if success {
 		mutex.Lock()
-		*csv = append(*csv, []string{currentIP.String(), strconv.Itoa(pingRecv), strconv.FormatFloat(pingTimeAvg, 'f', 4, 64)})
+		var cfdata CloudflareIPData
+		cfdata.ip = currentIP
+		cfdata.pingReceived = pingRecv
+		cfdata.pingTime = pingTimeAvg
+		cfdata.pingCount = pingCount
+		*csv = append(*csv, cfdata)
 		mutex.Unlock()
 	}
 	<-control
 }
+
+func GetDialContextByAddr(fakeSourceAddr string) func(ctx context.Context, network, address string) (net.Conn, error) {
+	return func(ctx context.Context, network, address string) (net.Conn, error) {
+		c, e := (&net.Dialer{}).DialContext(ctx, network, fakeSourceAddr)
+		return c, e
+	}
+}
+
+//bool : can download,float32 downloadSpeed
+func DownloadSpeedHandler(ip net.IPAddr) (bool, float32) {
+	var client = http.Client{
+		Transport:     nil,
+		CheckRedirect: nil,
+		Jar:           nil,
+		Timeout:       0,
+	}
+	client.Transport = &http.Transport{
+		DialContext: GetDialContextByAddr(ip.String() + ":443"),
+	}
+	response, err := client.Get(url)
+
+	if err != nil {
+		return false, 0
+	} else {
+		defer func() { _ = response.Body.Close() }()
+		if response.StatusCode == 200 {
+			timeStart := time.Now()
+			timeEnd := timeStart.Add(downloadTestTime)
+
+			contentLength := response.ContentLength
+			buffer := make([]byte, downloadBufferSize)
+
+			var contentRead int64 = 0
+			var timeSlice = downloadTestTime / 100
+			var timeCounter = 1
+			var lastContentRead int64 = 0
+
+			var nextTime = timeStart.Add(timeSlice * time.Duration(timeCounter))
+			e := ewma.NewMovingAverage()
+
+			for contentLength != contentRead {
+				var currentTime = time.Now()
+				if currentTime.After(nextTime) {
+					timeCounter += 1
+					nextTime = timeStart.Add(timeSlice * time.Duration(timeCounter))
+					e.Add(float64(contentRead - lastContentRead))
+					lastContentRead = contentRead
+				}
+				if currentTime.After(timeEnd) {
+					break
+				}
+				bufferRead, err := response.Body.Read(buffer)
+				contentRead += int64(bufferRead)
+				if err != nil {
+					if err != io.EOF {
+						break
+					} else {
+						e.Add(float64(contentRead-lastContentRead) / (float64(nextTime.Sub(currentTime)) / float64(timeSlice)))
+					}
+				}
+			}
+			return true, float32(e.Value()) / (float32(downloadTestTime.Seconds()) / 100)
+		} else {
+			return false, 0
+		}
+	}
+}

util.go

@@ -0,0 +1,122 @@
+package main
+
+import (
+	"encoding/csv"
+	"log"
+	"math/rand"
+	"net"
+	"os"
+	"strconv"
+	"time"
+
+	"github.com/cheggaaa/pb/v3"
+)
+
+type CloudflareIPData struct {
+	ip            net.IPAddr
+	pingCount     int
+	pingReceived  int
+	recvRate      float32
+	downloadSpeed float32
+	pingTime      float32
+}
+
+func (cf *CloudflareIPData) getRecvRate() float32 {
+	if cf.recvRate == 0 {
+		cf.recvRate = float32(cf.pingReceived) / float32(cf.pingCount)
+	}
+	return cf.recvRate
+}
+
+func ExportCsv(filePath string, data []CloudflareIPData) {
+	fp, err := os.Create(filePath)
+	if err != nil {
+		log.Fatalf("创建文件["+filePath+"]句柄失败,%v", err)
+		return
+	}
+	defer fp.Close()
+	w := csv.NewWriter(fp) //创建一个新的写入文件流
+	w.Write([]string{"IP 地址", "测试次数", "成功次数", "成功比率", "平均延迟", "下载速度 (MB/s)"})
+	w.WriteAll(convertToString(data))
+	w.Flush()
+}
+
+func (cf *CloudflareIPData) toString() []string {
+	result := make([]string, 6)
+	result[0] = cf.ip.String()
+	result[1] = strconv.Itoa(cf.pingCount)
+	result[2] = strconv.Itoa(cf.pingReceived)
+	result[3] = strconv.FormatFloat(float64(cf.getRecvRate()), 'f', 2, 32)
+	result[4] = strconv.FormatFloat(float64(cf.pingTime), 'f', 2, 32)
+	result[5] = strconv.FormatFloat(float64(cf.downloadSpeed)/1024/1024, 'f', 2, 32)
+	return result
+}
+
+func convertToString(data []CloudflareIPData) [][]string {
+	result := make([][]string, 0)
+	for _, v := range data {
+		result = append(result, v.toString())
+	}
+	return result
+}
+
+var pingTime int
+var pingRoutine int
+
+var ipEndWith uint8 = 0
+
+type progressEvent int
+
+const (
+	NoAvailableIPFound progressEvent = iota
+	AvailableIPFound
+	NormalPing
+)
+
+const url string = "https://apple.freecdn.workers.dev/105/media/us/iphone-11-pro/2019/3bd902e4-0752-4ac1-95f8-6225c32aec6d/films/product/iphone-11-pro-product-tpl-cc-us-2019_1280x720h.mp4"
+
+var downloadTestTime time.Duration
+
+const downloadBufferSize = 1024
+
+var downloadTestCount int
+
+const defaultTcpPort = 443
+const tcpConnectTimeout = time.Second * 1
+
+var failTime int
+
+type CloudflareIPDataSet []CloudflareIPData
+
+func initipEndWith() {
+	rand.Seed(time.Now().UnixNano())
+	ipEndWith = uint8(rand.Intn(254) + 1)
+}
+
+func handleProgressGenerator(pb *pb.ProgressBar) func(e progressEvent) {
+	return func(e progressEvent) {
+		switch e {
+		case NoAvailableIPFound:
+			pb.Add(pingTime)
+		case AvailableIPFound:
+			pb.Add(failTime)
+		case NormalPing:
+			pb.Increment()
+		}
+	}
+}
+
+func (cfs CloudflareIPDataSet) Len() int {
+	return len(cfs)
+}
+
+func (cfs CloudflareIPDataSet) Less(i, j int) bool {
+	if (cfs)[i].getRecvRate() != cfs[j].getRecvRate() {
+		return cfs[i].getRecvRate() > cfs[j].getRecvRate()
+	}
+	return cfs[i].pingTime < cfs[j].pingTime
+}
+
+func (cfs CloudflareIPDataSet) Swap(i, j int) {
+	cfs[i], cfs[j] = cfs[j], cfs[i]
+}