Linux上的離線字典——GoldenDict

GoldenDict是一款方便的字典應用,不僅支持離線字典和屏幕取詞,也支持在線辭典服務。Fedora直接從軟件倉庫安裝goldendict即可,默認的屏幕取詞快捷鍵是Ctrl+C+C。

分享幾個字典的下載地址:https://1drv.ms/f/s!AiSujQyFSc-uab_ItF61BBKnLUs。GoldenDict中的字典順序也是下面順序。

  1. Babylon_English_Chinese_S_.BGL
  2. Babylon_Chinese_S_English.BGL
  3. Oxford_Advanced_Learner_English-Chinese_Dictionary-4th.bgl
  4. ConciseOxfordEnglishDictionary.dsl.dz
  5. Oxford English Dictionary (2nd Edition) .bgl
  6. 现代汉英词典(金山).dsl.dz

安卓也有GoldenDict可用,我用的免費版(谷歌市場:GoldenDict Free),有最大5個字典的限制,但是也夠用了。

youtube-dl

之前用過一些在線提取和轉換YouTube視頻的服務,近來發現這些提取或轉換的鏈接要求ip一致,那就無法用洋蔥網絡下載了。好在發現youtube-dl這麼個好工具,不僅能下載單集視頻還能下載視頻列表;不僅能單獨下載字幕還能把字幕合入視頻,非常強大。目前用的這幾個參數,記錄一下。

#安裝youtube-dl
sudo dnf install youtube-dl
##單個視頻下載
#查看可下載的視頻,注意audio only的視頻,沒有伴音的哦
youtube-dl https://www.youtube.com/watch?v=qU52CFGTGu0 -F
#下載編號為22的視頻
youtube-dl --proxy socks5://127.0.0.1:9150 qU52CFGTGu0 -f 22
#續傳中斷的視頻
youtube-dl --proxy socks5://127.0.0.1:9150 qU52CFGTGu0 -f 22 --continue
#列出所有字幕
youtube-dl --proxy socks5://127.0.0.1:9150 qU52CFGTGu0 --list-subs
#只下載字幕而不下載視頻
youtube-dl --all-subs --skip-download --proxy socks5://127.0.0.1:9150 https://www.youtube.com/watch?v=qU52CFGTGu0
#使用aria2搭配proxychains實現多進程下載
sudo dnf install aria2 proxychains-ng
proxychains4 youtube-dl -f mp4 --external-downloader aria2c --external-downloader-args '-c -j4 -x 4 -s 4 -k 5M' lW0ugxbtIEE
##視頻列表下載
#將視頻列表中的視頻連接輸出到文本文件
youtube-dl -j --flat-playlist "https://www.youtube.com/playlist?list=PLATwx1z00HsdanKZcTMQEc-n_Bhu_aZ76" | jq -r '.id' | sed 's_^_https://youtu.be/_' > list.log
#從文件里讀取視頻地址並下載,下載過的會保存於done.txt不會重複下載
youtube-dl -f mp4 --external-downloader aria2c --external-downloader-args '-c -j5 -x 5 -s 5 -k 10M --max-download-limit 1024k' --batch-file list.log --download-archive done.txt

參考:youtube-dl批量下载时,跳过之前已经下载过的文件

Hourly Reminder

忙起來的時候不知不覺時間就過去了,而久坐對健康絕對不是什麼好事。那麼就產生了一個需求,提醒我時間的流逝。Android上有個不錯的開源應用Hourly Reminder,但是我是在工作的時候才需要提醒,所以最好是桌面彈窗。簡單搜索發現Fedora預裝的notify-send命令就能很好的實現toast效果,搭配crontab就能滿足需求了。

crontab -e
#單行Hourly Reminder簡潔版
0 9-18 * * 1-5 notify-send -t 6000 '整點咯' 'It is 🕛 time.'
#Hourly Reminder python 豪華版
0 9-18 * * 1-5 /home/42/Programs/p37/bin/python /home/42/eclipse-workspace/scriptsP37/hourlyReminder.py

file:/home/42/eclipse-workspace/scriptsP37/hourlyReminder.py

#!/home/42/Programs/p37/bin/python
import time,datetime,subprocess,random

ts = int(time.time())
hour = datetime.datetime.fromtimestamp(ts).strftime('%H')
title = "現在時刻"+hour+"點整"
emojiList=['🍏','🍎','🍐','🍊','🍋','🍌','🍉','🍇','🍓','🍈','🍒','🍑','🍍','🥭','🥥','🥝','🍅','🍆','🥑','🥒','🥬','🌶','🌽','🥕','🥔','🍠','🥐','🍞','🥖','🥯','🧀','🥚','🍳','🥞','🥓','🍗','🍖','🌭','🍔','🍟','🍕','🥙','🌮','🌯','🥗','🥘','🍝','🍜','🍲','🍛','🍣','🍱','🍤','🍘','🍥','🥮','🍢','🍡','🍧','🍨','🍦','🍰','🎂','🍮','🍭','🍬','🍫','🍿','🧂','🍩','🍪','🌰','🥜','🍯','🥛','🍼','☕️','🍵','🥤','🍶','🍺','🍻','🥂','🍷','🥃','🍸','🍹','🍾']
content = '\r        '+random.choice(emojiList)+'\r'
subprocess.check_call(['notify-send','-t','6000',title,content])

定時任務參考自crontab guru。 Emoji複製自Get Emoji

Fedora使用Impactor安裝ipa

使用Impactor可以為蘋果手機安裝ipa程序,無論手機是否越獄。從Cydia Impactor下載需要的包並解壓。

./Impactor

./Impactor: error while loading shared libraries: libudev.so.0: cannot open shared object file: No such file or directory
#若出現上述錯誤則
sudo ln -sf /usr/lib64/libudev.so.1 /usr/lib64/libudev.so.0

./Impactor: error while loading shared libraries: libatomic.so.1: cannot open shared object file: No such file or directory
#若出現上述錯誤則
sudo dnf install libatomic

./Impactor: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory
#若出現上述錯誤則
sudo dnf install ncurses-compat-libs

啟動Impactor後,先選中手機,再在Device>Install package選擇要安裝的包,輸入蘋果賬號密碼即可。




Fedora找尋丟失庫的方法,如

./Impactor: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory
sudo dnf provides libncurses.so.5
ncurses-compat-libs-6.0-8.20170212.fc26.i686 : Ncurses compatibility libraries
軟體庫    :fedora
符合之來源:
Provide    : libncurses.so.5
sudo dnf install ncurses-compat-libs

棄用ibus-rime

試圖在Fedora26上使用Rime輸入法,經過數小時嘗試都不能完整打出自己想要的句子,只能吐血半升後放棄。IBus Intelligent Pinyin雖然有不少缺點也傻傻的,但仍然是我目前遇到最好用的開源拼音輸入法。查看源碼發現已經智能拼音已經更新到了1.10.92,在Fedora26上嘗試編譯失敗後(一天內兩次失敗,真是受打擊😫),決定升級Fedora。

迅速新裝了一個Fedora 29 Xfce,很好用,美滋滋。

使用Termux搭建假wifi熱點

注:本文旨在學習研究wifi熱點相關知識,請勿用於任何違反道德之事。

需要一台Root過的Android(系統版本不低於5.0)手機,安裝好Termux和python。實現Captive Portal需要兩部分,請求重定向和授權頁面。重定向的實現有多種,這裡既然是假熱點,所以使用最簡單的iptables重定向dns。授權頁面則直接採用jczic/MicroWebSrv實現的網頁服務器。把MicroWebSrv解壓到~/scripts/MicroWeb,然後新建如下文件

#~/scripts/MicroWeb/forward.sh
remove127(){
  /system/bin/iptables -t nat -D PREROUTING -p tcp --dport 80 -j DNAT --to-destination 192.168.43.1:8000&&/system/bin/iptables -t nat -D PREROUTING -p tcp --dport 443 -j DNAT --to-destination 192.168.43.1:8000
}
add127(){
  /system/bin/iptables -t nat -I PREROUTING -p tcp --dport 80 -j DNAT --to-destination 192.168.43.1:8000&&/system/bin/iptables -t nat -I PREROUTING -p tcp --dport 443 -j DNAT --to-destination 192.168.43.1:8000
}
if [[ $1 = "1" ]]; then
  echo "start"       
  add127
elif [[ $1 = "0" ]]; then
  echo "stop"
  remove127
fi
#~/scripts/MicroWeb/web.py
from microWebSrv import MicroWebSrv
mws = MicroWebSrv(port=8000,bindIP='0.0.0.0',webPath="/data/data/com.termux/files/home/scripts/MicroWeb/www")
mws.SetNotFoundPageUrl("http://192.168.43.1:8000/hotspot-detect.html")
mws.Start(False)
#~/scripts/MicroWeb/www/hotspot-detect.html
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, height=device-height, user-scalable=no, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0">
    <meta name="format-detection" content="telephone=no">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="renderer" content="webkit|ie-comp|ie-stand">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
  
  <title>Captive Portal</title>
  <script>
  /*!
 * clipboard.js v2.0.0
 * https://zenorocha.github.io/clipboard.js
 * 
 * Licensed MIT © Zeno Rocha
 */
!function(t,e){"object"==typeof exports&&"object"==typeof module?module.exports=e():"function"==typeof define&&define.amd?define([],e):"object"==typeof exports?exports.ClipboardJS=e():t.ClipboardJS=e()}(this,function(){return function(t){function e(o){if(n[o])return n[o].exports;var r=n[o]={i:o,l:!1,exports:{}};return t[o].call(r.exports,r,r.exports,e),r.l=!0,r.exports}var n={};return e.m=t,e.c=n,e.i=function(t){return t},e.d=function(t,n,o){e.o(t,n)||Object.defineProperty(t,n,{configurable:!1,enumerable:!0,get:o})},e.n=function(t){var n=t&&t.__esModule?function(){return t.default}:function(){return t};return e.d(n,"a",n),n},e.o=function(t,e){return Object.prototype.hasOwnProperty.call(t,e)},e.p="",e(e.s=3)}([function(t,e,n){var o,r,i;!function(a,c){r=[t,n(7)],o=c,void 0!==(i="function"==typeof o?o.apply(e,r):o)&&(t.exports=i)}(0,function(t,e){"use strict";function n(t,e){if(!(t instanceof e))throw new TypeError("Cannot call a class as a function")}var o=function(t){return t&&t.__esModule?t:{default:t}}(e),r="function"==typeof Symbol&&"symbol"==typeof Symbol.iterator?function(t){return typeof t}:function(t){return t&&"function"==typeof Symbol&&t.constructor===Symbol&&t!==Symbol.prototype?"symbol":typeof t},i=function(){function t(t,e){for(var n=0;n<e.length;n++){var o=e[n];o.enumerable=o.enumerable||!1,o.configurable=!0,"value"in o&&(o.writable=!0),Object.defineProperty(t,o.key,o)}}return function(e,n,o){return n&&t(e.prototype,n),o&&t(e,o),e}}(),a=function(){function t(e){n(this,t),this.resolveOptions(e),this.initSelection()}return i(t,[{key:"resolveOptions",value:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:{};this.action=t.action,this.container=t.container,this.emitter=t.emitter,this.target=t.target,this.text=t.text,this.trigger=t.trigger,this.selectedText=""}},{key:"initSelection",value:function(){this.text?this.selectFake():this.target&&this.selectTarget()}},{key:"selectFake",value:function(){var t=this,e="rtl"==document.documentElement.getAttribute("dir");this.removeFake(),this.fakeHandlerCallback=function(){return t.removeFake()},this.fakeHandler=this.container.addEventListener("click",this.fakeHandlerCallback)||!0,this.fakeElem=document.createElement("textarea"),this.fakeElem.style.fontSize="12pt",this.fakeElem.style.border="0",this.fakeElem.style.padding="0",this.fakeElem.style.margin="0",this.fakeElem.style.position="absolute",this.fakeElem.style[e?"right":"left"]="-9999px";var n=window.pageYOffset||document.documentElement.scrollTop;this.fakeElem.style.top=n+"px",this.fakeElem.setAttribute("readonly",""),this.fakeElem.value=this.text,this.container.appendChild(this.fakeElem),this.selectedText=(0,o.default)(this.fakeElem),this.copyText()}},{key:"removeFake",value:function(){this.fakeHandler&&(this.container.removeEventListener("click",this.fakeHandlerCallback),this.fakeHandler=null,this.fakeHandlerCallback=null),this.fakeElem&&(this.container.removeChild(this.fakeElem),this.fakeElem=null)}},{key:"selectTarget",value:function(){this.selectedText=(0,o.default)(this.target),this.copyText()}},{key:"copyText",value:function(){var t=void 0;try{t=document.execCommand(this.action)}catch(e){t=!1}this.handleResult(t)}},{key:"handleResult",value:function(t){this.emitter.emit(t?"success":"error",{action:this.action,text:this.selectedText,trigger:this.trigger,clearSelection:this.clearSelection.bind(this)})}},{key:"clearSelection",value:function(){this.trigger&&this.trigger.focus(),window.getSelection().removeAllRanges()}},{key:"destroy",value:function(){this.removeFake()}},{key:"action",set:function(){var t=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"copy";if(this._action=t,"copy"!==this._action&&"cut"!==this._action)throw new Error('Invalid "action" value, use either "copy" or "cut"')},get:function(){return this._action}},{key:"target",set:function(t){if(void 0!==t){if(!t||"object"!==(void 0===t?"undefined":r(t))||1!==t.nodeType)throw new Error('Invalid "target" value, use a valid Element');if("copy"===this.action&&t.hasAttribute("disabled"))throw new Error('Invalid "target" attribute. 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  </script>
    <style>
        .wrapper {
            text-align: center;
        }

        .button {
            position: absolute;
            top: 50%;
            margin-top:2em;
        }
    </style>
</head>
<body>
    <div class="wrapper">
        <button class="btn" id="clickButton" data-clipboard-text="just kidding :)">
            Connect to the Internet
        </button>
    </div>

    <script>
        var clipboard = new ClipboardJS('.btn');    
        clipboard.on('success', function(e) {
            console.info('Action:', e.action);
            console.info('Text:', e.text);
            console.info('Trigger:', e.trigger);

            e.clearSelection();
        });

        clipboard.on('error', function(e) {
            console.error('Action:', e.action);
            console.error('Trigger:', e.trigger);
        });  
    </script>
</body>
</html>

上面文件唯一需要修改的地方是你手機的wifi網關,可以在打開手機熱點後通過ip addr命令查看,我的是wlan0網卡,網關是192.168.43.1。

#iptable需要root權限
su
./forward.sh 1
#然后新开一个session運行web server
python web.py
#這時其他手機連上此熱點,即會彈出自定義頁面hotspot-detect.html。

AFWall+ 安卓可用的iptables

安卓手機如果root了,便可以通過AFWall+Github項目地址)來使用iptables管控網絡。

在安卓上使用DNSCrypt

由於TCP旁路阻斷技術的應用,DNSCrypt已經不能為日常使用網絡帶來太多方便,所以僅僅是記錄一下使用方法而已。先安裝好AFWall+並根據自己的喜好定製軟件的聯網規則,然後啟用iptables。我們使用Termux來至執行iptabls命令。根據自己的手機系統下載dnscrypt-proxy,比如我的就是dnscrypt-proxy-android_arm64-2.0.17.zip。如果不知道自己的手機系統,可以運行uname -a,如果出現aarch64就跟我一樣下載android_arm64版本就行。下載後解壓到/data/data/com.termux/files/home/opt/dns目錄里。複製一份文件夾里的配置文件即cp example-dnscrypt-proxy.toml dnscrypt-proxy.toml就可以了。下面的文件我是放在家目錄下的,文件名是dns.sh,記得加上執行權限。

remove127(){
  /system/bin/iptables -t nat -D OUTPUT -p tcp --dport 53 -j DNAT --to-destination 127.0.0.1:53&&/system/bin/iptables -t nat -D OUTPUT -p udp --dport 53 -j DNAT --to-destination 127.0.0.1:53
}
add127(){
  /system/bin/iptables -t nat -I OUTPUT -p tcp --dport 53 -j DNAT --to-destination 127.0.0.1:53&&/system/bin/iptables -t nat -I OUTPUT -p udp --dport 53 -j DNAT --to-destination 127.0.0.1:53
}
startDns(){
  /data/data/com.termux/files/home/opt/dns/dnscrypt-proxy -config /data/data/com.termux/files/home/opt/dns/dnscrypt-proxy.toml > /dev/null 2>1 &
  echo "starting dns"
  sleep 15
}
stopDns(){
  pkill dnscrypt-proxy
  echo "killed dns"
}
test(){
  var1=$(su -c "/system/bin/iptables -C OUTPUT -p tcp --dport 53 -j DNAT --to-destination 127.0.0.1:53")
}
status(){
  vt1="$(ps -ef | grep dnscrypt-proxy | wc -l)"
  if [[ $vt1 = "2" ]]; then
    dnsproxyStatus="1"
  else
    dnsproxyStatus="0"
  fi
  vt2="$(/system/bin/iptables -t nat -L | grep 127.0.0.1:53 | wc -l)"
  if [[ $vt2 = "2" ]]; then
    iptablesStatus="1"
  else
    iptablesStatus="0"
  fi
}
if [[ $1 = "1" ]]; then
  echo "start"      
  remove127              
  sleep 5                
  startDns       
  add127
elif [[ $1 = "2" ]]; then
  echo "restart"        
  remove127
  stopDns         
  sleep 3           
  startDns               
  add127 
elif [[ $1 = "0" ]]; then
  echo "stop"
  remove127
  stopDns
elif [[ $1 = "s" ]]; then
  status
  echo "dns: $dnsproxyStatus | iptables: $iptablesStatus"
else
  status
  if [[ $dnsproxyStatus = "1" ]]; then
    echo "$(date) dns ok" >> /data/data/com.termux/files/home/log.log
  else
    remove127
    stopDns
    remove127
    sleep 5
    startDns
    add127
    echo "$(date) dns started" >> /data/data/com.termux/files/home/log.log
  fi
  
fi
#使用說明
#首先切換的超級用戶
su
#查看當前狀態,1代表開啟,0代表關閉
./dns.sh s
#關閉dnscrypt-proxy
./dns.sh 0
#開啟dnscrypt-proxy
./dns.sh 1
#重新啟動dnscrypt-proxy
./dns.sh 2

啟動完成後可以通過dnsleaktest.com來查看當前的本機的dns。本來腳本還做了自啟動的適配,但是無論是Termux的自動啟動還是Magisk的自動啟動,都不太好用就算了。