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metasploit-gs/docs/metasploit-framework.wiki/Writing-External-GoLang-Modules.md
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2022-05-20 13:13:28 +01:00

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Contributing modules in [GO](https://golang.org/) can be achieved in a few simple steps as outlined below. As for supported GO version, we have tested with 1.11.2, no promised for version 2.
#### 1. Location
* Select the appropriate [module](https://github.com/rapid7/metasploit-framework/tree/master/modules) path based on the type of module you are trying to contribute
* Be sure to include appropriate module documentation under [here](https://github.com/rapid7/metasploit-framework/tree/master/documentation/modules)
* Test your documentation is correct by executing `info -d`
#### 2. Execution
* Include this line at the top of your module: `//usr/bin/env go run "$0" "$@"; exit "$?"`
* Ensure your file **is** an executable file
#### 3. Setup
* Initialize your module with the module metadata:
```go
import "metasploit/module"
func main() {
metadata := &module.Metadata{
Name: "<module name",
Description: "<describe>",
Authors: []string{"<author 1>", "<author 2>"},
Date: "<date module written",
Type:"<module type>",
Privileged: <true|false>,
References: []module.Reference{},
Options: map[string]module.Option{
"<option 1": {Type: "<type>", Description: "<description>", Required: <true|false>, Default: "<default>"},
"<option 2": {Type: "<type>", Description: "<description>", Required: <true|false>, Default: "<default>"},
}}
module.Init(metadata, <the entry method to your module>)
}
```
**[FULL EXAMPLE](https://github.com/rapid7/metasploit-framework/blob/master/modules/auxiliary/scanner/msmail/exchange_enum.go)**
**_Note: Above does not outline the full potential list of metadata options_**
**Currently supported _module types_:**
* remote_exploit
* remote_exploit_cmd_stager
* capture_server
* dos
* single_scanner
* single_host_login_scanner
* multi_scanner
#### 4. Shared Code
* For code that is shared specific to your module create a directory in your module directory:
`shared/src/` metasploit will automatically add these to the GOPATH
* For code that you think could be used across modules, add code [here](https://github.com/rapid7/metasploit-framework/tree/master/lib/msf/core/modules/external/go/src/metasploit)
* 3rd party libs aren't currently supported but we welcome patches
#### 5. Finalize
* Test your Pull Request
* Create a [Pull Request](https://github.com/rapid7/metasploit-framework/blob/master/CONTRIBUTING.md#pull-requests)
* No coding standard here, be sure to [gofmt](https://blog.golang.org/go-fmt-your-code)