Convert UFW log file to csv.
在啟用UFW（Uncomplicated Firewall）後有時候會打開防火牆產生的日誌看看，但看幾次總覺得原生出來的不太容易閱讀或統計之類的，因此動手寫了一個小程式來幫忙轉成csv。
Why I create this little tool?
Since using UFW（Uncomplicated Firewall） , I often check the diary(record)generated from the firewall. However I find that it’s hard to read or to calculate the original diary(record) Thus, I decide to make a tool to translate the record to csv file.
Python 3.6 以上或更新（Python2使用者可將程式碼中的兩個, encoding='UTF-8'刪掉亦可執行和輸出csv）
Python 3.6 or or latest version (For Python2, you can delete , encoding='UTF-8' from code to execute.)
The user has to use version 3.6 of Python or the latest one. if you use the version 2. Just delete the code “encoding='UTF-8”, and you can run the tool and output the csv file.
※關於紀錄中各項目代表的意思可參見 https://askubuntu.com/questions/1116145/understanding-ufw-log 。
請將ufw_log_to_csv.py和ufw.log放在同個目錄下（可將log複製出來或將ufw_log_to_csv.py放進去，推薦前者）後執行：
cd [檔案所在位置]
py ufw_log_to_csv.py # Windows user
python3 ufw_log_to_csv.py # Linux user
之後程式會自己尋找ufw.log這個檔案並輸出成[YYYYMMDD_HHMMSS].csv（可自行替換程式碼中輸出和輸入的檔名以符合自己需求），如果有不正確的地方請調整設定：編碼為UTF-8、資料有標題、分隔符號為逗號。
About the meanings in every item, check https://askubuntu.com/questions/1116145/understanding-ufw-log
plz put ufw_log_to_csv.pyand ufw.login the same catalog(copy log or put ufw_log_to_csv.pyin, I RECOMMAND the former) to execute.
cd [檔案所在位置]
py ufw_log_to_csv.py # Windows user
python3 ufw_log_to_csv.py # Linux user
and then the code will search ufw.log and export to [YYYYMMDD_HHMMSS].csv(you can change the name of the file to meet your need )
if there is something unproper, plz debug in the following way： code is UTF-8、data with title and semicolon to comma.
Q1：如果遇到ValueError: dict contains fields not in fieldnames: 'something'錯誤該怎麼辦？
A1：此情況代表該筆紀錄中出現了程式碼中沒有的欄位，請將錯誤紀錄及該筆原始 log 貼至 issues 上以利更新程式。
Q1:If you face the problem that "ValueError: dict contains fields not on fieldnames:'something'," how can you do?
A1:This situation means the code get the columns that doesn't exist originally. Plz paste the wrong record and the original log to issues, so that the code can be updated.
Q2：輸出的 csv 欄位順序我不喜歡，可以自己改嗎？
A2：可以，請自行調整 fieldnames 此處的順序。但請注意，不要隨意更動欄位名稱以防程式出錯。
Q2:I DON'T like the order of column in the csv file I output, may I take a change?
A2: Ya! please check the order in fieldnames and make sure that don't move the name of colmns. Or it may be wrong.
Q3：為什麼紀錄的最後方會有很多空的欄位？
A3：因為不同等級設定甚至是封包協定都會有不同的內容，為了方便篩選、統計等故全部列出。有資料則填入；沒有則留空。
Q3:WHY there will some bank colmns on the bottom of the record?
A3:Cause there are different sets and content for the protocol. To be easier to calculate and filter , I design the code to list all data. If there is data, fill it in ;if not, leave it bank.
Q4：「??」欄位是做什麼用的？如果有資料該怎麼辦？
A4：這個欄位是用於中括號裡紀錄的例外處理，如果此欄位出現資料，請將該筆原始紀錄回報至 issues。
Q4: What does [??] coilmn here? what can you do if there is data?
A4: This column is for the exception of the record in brackets. If there is data, plz report that data to issues。.
- 當協定為ICMP時有奇怪的紀錄會破壞整個邏輯，詳細見 [issue4](https://github.com/hms5232/ufw-log-to-csv/issues/4o
1.When protocol is ICMP with strange recod, it will break whole logic. Read detail in [issue4](https://github.com/hms5232/ufw-log-to-csv/issues/4o
請見 LICENSE 頁面。
See LICENSE.