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67 lines
2.9 KiB
67 lines
2.9 KiB
# ja-netfilter v1.2.0
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### A javaagent framework
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## Usage
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* download from the [releases page](https://github.com/ja-netfilter/ja-netfilter/releases)
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* add `-javaagent:/absolute/path/to/ja-netfilter.jar` argument (**Change to your actual path**)
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* add as an argument of the `java` command. eg: `java -javaagent:/absolute/path/to/ja-netfilter.jar -jar executable_jar_file.jar`
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* some apps support the `JVM Options file`, you can add as a line of the `JVM Options file`.
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* **WARNING: DO NOT put some unnecessary whitespace characters!**
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* edit your own rule list config file. The `ja-netfilter` will look for it in the following order(find one and stop searching):
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* passed as args of `-javaagent`. eg: `-javaagent:/absolute/path/to/ja-netfilter.jar=/home/neo/downloads/janf_config.txt`
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* file path in environment variable: `JANF_CONFIG`
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* file path in `java` startup property: `janf.config`. `eg: java -Djanf.config="/home/neo/downloads/janf_config.txt"`
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* some apps support the `JVM Options file`, you can add as a line of the `JVM Options file`. `eg: -Djanf.config="/home/neo/downloads/janf_config.txt"`
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* file path in the same dir as the `ja-netfilter.jar`, no need for additional configuration (<font color=green>**PREFERRED!**</font>)
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* file path in your home directory, named: `.janf_config.txt`. `eg: /home/neo/.janf_config.txt`
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* file path in the subdirectory named `.config` in your home directory. `eg: /home/neo/.config/janf_config.txt`
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* file path in the subdirectory named `.local/etc` in your home directory. `eg: /home/neo/.local/ect/janf_config.txt`
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* file path in the directory named `/usr/local/etc`. `eg: /usr/local/etc/janf_config.txt`
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* file path in the directory named `/etc`. eg: `/etc/janf_config.txt`
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* run your java application and enjoy~
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## Config file format
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```
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[ABC]
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# for the specified plugin called "ABC"
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[URL]
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EQUAL,https://someurl
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[DNS]
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EQUAL,somedomain
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# EQUAL Use `equals` to compare
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# EQUAL_IC Use `equals` to compare, ignore case
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# KEYWORD Use `contains` to compare
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# KEYWORD_IC Use `contains` to compare, ignore case
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# PREFIX Use `startsWith` to compare
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# PREFIX_IC Use `startsWith` to compare, ignore case
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# SUFFIX Use `endsWith` to compare
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# SUFFIX_IC Use `endsWith` to compare, ignore case
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# REGEXP Use regular expressions to match
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```
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## Debug info
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* the `ja-netfilter` will **NOT** output debugging information by default
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* add environment variable `JANF_DEBUG=1` and start to enable it
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* or add system property `-Djanf.debug=1` to enable it
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## Plugin system
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* for developer:
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* view the [scaffold project](https://github.com/ja-netfilter/ja-netfilter-sample-plugin) written for the plugin system
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* compile your plugin and publish it
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* just use your imagination~
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* for user:
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* download the jar file of the plugin
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* put it in the subdirectory called `plugins` where the ja-netfilter.jar file is located
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* enjoy the new capabilities brought by the plugin
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