作者归档：xinlu

获取响应内容 

log_format cntr escape=json '{"time":"$time_local",'
                        '"@source":"$server_addr",'
                        '"hostname":"$hostname",'
                        '"xforward":"$http_x_forwarded_for",'
                        '"remoteaddr":"$remote_addr",'
                        '"method":"$request_method",'
                        '"scheme":"$scheme",'
                        '"domain":"$server_name",'
                        '"referer":"$http_referer",'
                        '"requrl":"$request_uri",'
                        '"args":"$args",'
                        '"requestbody":"$request_body",'
                        '"contentlength":"$content_length",'
                        '"bodybytessend":$body_bytes_sent,'
                        '"status":$status,'
                        '"requesttime":$request_time,'
                        '"upstreamtime":"$upstream_response_time",'
                        '"upstreamaddr":"$upstream_addr",'
                        '"respbody":"$resp_body",'
                        '"respdown":"$resp_ctrl_down",'
                        '"useragent":"$http_user_agent"'
                        '}';
location /abc {
        #access_log off;
        access_log /data/logs/nginx/abc/access.log cntr buffer=32k flush=5s;
        error_log /data/logs/nginx/abc/error.log info;

        set $resp_ctrl_down -1;
        set $resp_body "";
        # only elk collection machine, can add the below lua code.
        body_filter_by_lua_block {
            local chunk, eof = ngx.arg[1], ngx.arg[2]
            ngx.var.resp_body=ngx.var.resp_body..chunk
            if eof then
               if string.find(ngx.var.resp_body,'"count":true') then
                  ngx.var.resp_ctrl_down = 1
               else
                  ngx.var.resp_ctrl_down = 0
               end
            end
        }

        proxy_pass http://abc/flow;
    }

fedora换阿里云镜像源 

su -
cd /etc/yum.repos.d/
mv fedora.repo fedora.repo.backup
mv fedora-updates.repo fedora-updates.repo.backup
wget -O /etc/yum.repos.d/fedora.repo http://mirrors.aliyun.com/repo/fedora.repo
wget -O /etc/yum.repos.d/fedora-updates.repo http://mirrors.aliyun.com/repo/fedora-updates.repo
dnf clean all
dnf makecache

LXQT-QTermWidget的编译

LXQT的编译说明
https://github.com/lxqt/lxqt/wiki/Building-from-source

流程如下：
1.安装Qt5。

yum install qt5-qtbase-devel qt5-qtsvg-devel qt5-qttools-devel qt5-qtx11extras-devel

2.安装CMake，一定用要官方包安装，并编辑bashrc文件。

export PATH=$PATH:/cmake-3.15.3/bin

3.下载lxqt-build-tools编译工具并安装。

git clone https://github.com/lxqt/lxqt-build-tools.git
假如是解压在~/lxqt/lxqt-build-tools目录下。
则创建编译目录~/lxqt/build
构建指令如下：
cmake ../lxqt-build-tools
make && make install
它会安装至/usr/local的某个目录下。

4.下载

git clone git@github.com:kxtry/qtermwidget.git
使用CLion构建及编译即可。
此版本已经与原版不一样，有修改。
原版可能无法编译完成，原因是QString("sdfsdfds")会编译不通过，因为从Qt5.9版本开始，QString(char *p)设置成私有函数了。

终端测试验证工具

https://misc.flogisoft.com/bash/home
终端配色：https://misc.flogisoft.com/bash/tip_colors_and_formatting
colors256.sh

#!/bin/bash
for fgbg in 38 48 ; do # Foreground / Background
    for color in {0..255} ; do # Colors
        # Display the color
        printf "\e[${fgbg};5;%sm  %3s  \e[0m" $color $color
        # Display 6 colors per lines
        if [ $((($color + 1) % 6)) == 4 ] ; then
            echo # New line
        fi
    done
    echo # New line
done
exit 0

colors_and_formatting.sh

#!/bin/bash
#Background
for clbg in {40..47} {100..107} 49 ; do
        #Foreground
        for clfg in {30..37} {90..97} 39 ; do
                #Formatting
                for attr in 0 1 2 4 5 7 ; do
                        #Print the result
                        echo -en "\e[${attr};${clbg};${clfg}m ^[${attr};${clbg};${clfg}m \e[0m"
                done
                echo #Newline
        done
done
exit 0

——-
http://invisible-island.net/xterm/ctlseqs/ctlseqs.html
http://www.xfree86.org/current/ctlseqs.html
Linux环境下，主要都是泛VT102的终端，以下是vt102终端。
https://vt100.net/docs/vt102-ug/introduction.html
https://vt100.net/docs/vt102-ug/contents.html
微软的
https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences
VT100,VT101,
参考开源：https://konsole.kde.org/

headless vt100 emulator
https://github.com/JulienPalard/vt100-emulator
https://github.com/freanux/VTE

自动拉起服务脚本 

crontab -e
*/1 * * * * sh /data/scripts/run-flow.sh start

#!/bin/sh

path_current=`pwd`
path_script=$(cd "$(dirname "$0")"; pwd)
mode=$1

logfile=/data/scripts/check.log
app_process=`ps -ef | grep "flowservice"| grep -v grep`
echo `date` >> $logfile
echo "ready to check...." >> $logfile
case "$mode" in
   'start')
        echo "$app_process" >> $logfile
        echo "it's ready to start op...."
        if test -n "$app_process"; then
                echo ""
                echo "$app_process"
                echo ""
        else
                cd $path_script   #进入脚本所在目录下，目的是使springboot的config目录生效。
                nohup /data/code/service.flow.wps.cn/flowservice --config=/data/code/service.flow.wps.cn/config/config-prod.toml > /data/code/service.flow.wps.cn/info.txt 2>&1 &
                echo "success to restart flowservice" >> $logfile
                cd $path_current

        fi

        echo 'success to start.'
        ;;
   'stop')
        echo "it's ready to check process..."
        if test -n "$app_process"; then
                echo "had find app process informaton"
                echo $app_process | awk '{print ($2)}' | xargs kill -9
        fi
        echo 'success to kill.'
        ;;
    *)
        basename=`basename "$0"`
        echo "Usage: $basename  {start|stop}  [ server options ]"
        exit 1
        ;;
esac
exit 1

GoLang的AST语法树 

package main

import (
	"fmt"
	"go/ast"
	"go/parser"
	"go/token"
)

func main() {
	// src is the input for which we want to print the AST.
	src := `
// @router /login [post]
// @router2 /login2 [post]
package main
func main() {
	println("Hello, World!")
}
`

	// Create the AST by parsing src.
	fset := token.NewFileSet() // positions are relative to fset
	f, err := parser.ParseFile(fset, "", src, parser.ParseComments)
	if err != nil {
		panic(err)
	}
	for _, comment := range f.Comments {
		fmt.Println(comment.Text())
	}

	// Print the AST.
	ast.Print(fset, f)

}

运行结果如下：

@router /login [post]
@router2 /login2 [post]

     0  *ast.File {
     1  .  Doc: *ast.CommentGroup {
     2  .  .  List: []*ast.Comment (len = 2) {
     3  .  .  .  0: *ast.Comment {
     4  .  .  .  .  Slash: 2:1
     5  .  .  .  .  Text: "// @router /login [post]"
     6  .  .  .  }
     7  .  .  .  1: *ast.Comment {
     8  .  .  .  .  Slash: 3:1
     9  .  .  .  .  Text: "// @router2 /login2 [post]"
    10  .  .  .  }
    11  .  .  }
    12  .  }
    13  .  Package: 4:1
    14  .  Name: *ast.Ident {
    15  .  .  NamePos: 4:9
    16  .  .  Name: "main"
    17  .  }
    18  .  Decls: []ast.Decl (len = 1) {
    19  .  .  0: *ast.FuncDecl {
    20  .  .  .  Name: *ast.Ident {
    21  .  .  .  .  NamePos: 5:6
    22  .  .  .  .  Name: "main"
    23  .  .  .  .  Obj: *ast.Object {
    24  .  .  .  .  .  Kind: func
    25  .  .  .  .  .  Name: "main"
    26  .  .  .  .  .  Decl: *(obj @ 19)
    27  .  .  .  .  }
    28  .  .  .  }
    29  .  .  .  Type: *ast.FuncType {
    30  .  .  .  .  Func: 5:1
    31  .  .  .  .  Params: *ast.FieldList {
    32  .  .  .  .  .  Opening: 5:10
    33  .  .  .  .  .  Closing: 5:11
    34  .  .  .  .  }
    35  .  .  .  }
    36  .  .  .  Body: *ast.BlockStmt {
    37  .  .  .  .  Lbrace: 5:13
    38  .  .  .  .  List: []ast.Stmt (len = 1) {
    39  .  .  .  .  .  0: *ast.ExprStmt {
    40  .  .  .  .  .  .  X: *ast.CallExpr {
    41  .  .  .  .  .  .  .  Fun: *ast.Ident {
    42  .  .  .  .  .  .  .  .  NamePos: 6:2
    43  .  .  .  .  .  .  .  .  Name: "println"
    44  .  .  .  .  .  .  .  }
    45  .  .  .  .  .  .  .  Lparen: 6:9
    46  .  .  .  .  .  .  .  Args: []ast.Expr (len = 1) {
    47  .  .  .  .  .  .  .  .  0: *ast.BasicLit {
    48  .  .  .  .  .  .  .  .  .  ValuePos: 6:10
    49  .  .  .  .  .  .  .  .  .  Kind: STRING
    50  .  .  .  .  .  .  .  .  .  Value: "\"Hello, World!\""
    51  .  .  .  .  .  .  .  .  }
    52  .  .  .  .  .  .  .  }
    53  .  .  .  .  .  .  .  Ellipsis: -
    54  .  .  .  .  .  .  .  Rparen: 6:25
    55  .  .  .  .  .  .  }
    56  .  .  .  .  .  }
    57  .  .  .  .  }
    58  .  .  .  .  Rbrace: 7:1
    59  .  .  .  }
    60  .  .  }
    61  .  }
    62  .  Scope: *ast.Scope {
    63  .  .  Objects: map[string]*ast.Object (len = 1) {
    64  .  .  .  "main": *(obj @ 23)
    65  .  .  }
    66  .  }
    67  .  Unresolved: []*ast.Ident (len = 1) {
    68  .  .  0: *(obj @ 41)
    69  .  }
    70  .  Comments: []*ast.CommentGroup (len = 1) {
    71  .  .  0: *(obj @ 1)
    72  .  }
    73  }

批量启动远程控制脚本 

#!/bin/sh
path_current=`pwd`
path_script=$(cd "$(dirname "$0")"; pwd)
server=$1
cfg=$path_script/config
if [ $# -lt 0 ]; then
   awk '{if($1 == "Host"){print $2}}' $cfg
else
   len=${#server}-1
   star=${server:1-2}
   prefix=${server:0:len}
   if [ "$star" == "*" ];then
      servers=$(grep '^Host ' F:/tools/myssh/config | sort -u | sed 's/^Host //')
      for svc in ${servers}
      do
         svchit=${svc:0:len}
         if [ $svchit == $prefix ]; then
            if [ "$svchit*" != "$svc" ]; then            
               $path_script/exec.exe -F F:\\tools\\myssh\\config "$svc"
            fi
         fi
      done
      exit
   fi
   $path_script/exec.exe -F F:\\tools\\myssh\\config $*
fi