Shadowsocks port traffic collecting

Shadowsocks is able to configure multiple ports and passwords on a single instance. This program can collect traffic data for every port on shadowsocks and save the data to MySQL.

Features

No extra shadowsocks configuration
Dynamically adding iptables rules and MySQL tables
Accumulation and differential traffic data for front-end display

Usage

Edit config.json at your will

Run the program periodically using something like crontab

  # $PATH is needed
  * * * * * source /home/yourusername/.bash_profile && sudo $GOPATH/bin/ss-port-traffic-collect config.json

Technical explaination

Methods

Add iptables rules (addrule for short)
Create MySQL tables (createtable for short)
Calculate port traffic data (collectdata for short)
Record traffic data (savedata for short)

In order to avoid maintaining and syncing shadowsocks configuration changes, addrule will check your shadowsocks config file everytime to reflect newest config status, but will not add duplicated rules. createtable will also try to create every port table if it doesn't exist.

collectdata will read accumulated traffic data on a certain port, but will also maintain a file that contains the traffic data last time it read, so that the differential traffic data could be calculated. If traffic data on a port is reset, accumulated traffic data will also be reset, but differential traffic data can continue.

Procedures

The whole process can run concurrently, shown as follows:

    |addrule| -> |collectdata| -> |save|
    |createtable| --------------> |data|

Thanks to Golang's concurrent mechanism, the implemetation is quite simple and straghtforward.

Table structure

The program will generate a table for every port, the structure is as follows:

    | traffic_diff | BIGINT NOT NULL DEFAULT 0                       |
    | collect_time | TIMESTAMP DEFAULT CURRENT_TIMESTAMP PRIMARY KEY |