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protocol.\n\n[![release](https://github.com/tai-ga/gowhoson/workflows/release/badge.svg)](https://github.com/tai-ga/gowhoson/actions?query=workflow%3Arelease)\n[![codecov](https://codecov.io/gh/tai-ga/gowhoson/branch/master/graph/badge.svg)](https://codecov.io/gh/tai-ga/gowhoson)\n[![Go Report Card](https://goreportcard.com/badge/github.com/tai-ga/gowhoson)](https://goreportcard.com/report/github.com/tai-ga/gowhoson)\n[![PkgGoDev](https://pkg.go.dev/badge/github.com/tai-ga/gowhoson/whoson)](https://pkg.go.dev/github.com/tai-ga/gowhoson/whoson)\n[![GitHub release](https://img.shields.io/github/release/tai-ga/gowhoson.svg)](https://github.com/tai-ga/gowhoson/releases/latest)\n[![MIT License](http://img.shields.io/badge/license-MIT-blue.svg?style=flat)](https://github.com/tai-ga/gowhoson/blob/master/LICENSE)\n\n#### What is whoson ?\nWhoson (\"WHO iS ONline\") is a proposed Internet protocol that allows Internet server programs know if a particular (dynamically allocated) IP address is currently allocated to a known (trusted) user and, optionally, the identity of the said user.\nThe protocol could be used by an SMTP Message Transfer System in conjunction with anti-spam-relaying filters to implement a scheme similar to the one described here to allow roaming customers use their \"home\" SMTP server to submit email while connected from a \"foreign\" network.\n\n#### Link\n* \"Whoson\" Project page. [http://whoson.sourceforge.net/](http://whoson.sourceforge.net/).\n* About the \"Whoson\" protocol.  [http://whoson.sourceforge.net/whoson.txt](http://whoson.sourceforge.net/whoson.txt)\n\n#### Examples whoson package\nServer 01\n```go\nfunc main() {\n        whoson.ListenAndServe(\"tcp\", \":9876\")\n}\n```\nServer 02\n```go\nfunc main() {\n  addr := net.TCPAddr{\n    Port: 9876,\n    IP:   net.ParseIP(\"127.0.0.1\"),\n  }\n\n  l, err := net.ListenTCP(\"tcp\", \u0026addr)\n  if err != nil {\n    log.Fatalf(\"%v\", err)\n  }\n  whoson.ServeTCP(l)\n}\n```\n\nClient\n```go\nfunc main() {\n        client, err := whoson.Dial(\"tcp\", \"127.0.0.1:9876\")\n        if err != nil {\n                log.Fatalf(\"%v\", err)\n        }\n        defer client.Quit()\n\n        res, err := client.Login(\"192.168.0.1\", \"user01@example.org\")\n        if err != nil {\n                log.Fatalf(\"%v\", err)\n        }\n        fmt.Println(res.String())\n}\n```\n#### Install\n```\n$ go get -u github.com/tai-ga/gowhoson/cmd/gowhoson\n```\n\n#### Usage\nServer\n```\n\u003e gowhoson server -h\nNAME:\n   gowhoson server - gowhoson server mode\n\nUSAGE:\n   gowhoson server [command options] [arguments...]\n\nOPTIONS:\n   --tcp value       e.g. [ServerIP:Port|nostart] [$GOWHOSON_SERVER_TCP]\n   --udp value       e.g. [ServerIP:Port|nostart] [$GOWHOSON_SERVER_UDP]\n   --log value       e.g. [stdout|stderr|discard] or \"/var/log/filename.log\" [$GOWHOSON_SERVER_LOG]\n   --loglevel value  e.g. [debug|info|warn|error|dpanic|panic|fatal] [$GOWHOSON_SERVER_LOGLEVEL]\n   --serverid value  e.g. [1000] (default: 0) [$GOWHOSON_SERVER_SERVERID]\n   --expvar          e.g. (default: false) [$GOWHOSON_SERVER_EXPVAR]\n```\n\nClient\n```\n\u003e gowhoson client -h\nNAME:\n   gowhoson client - gowhoson client mode\n\nUSAGE:\n   gowhoson client command [command options] [arguments...]\n\nCOMMANDS:\n     login       whoson command \"LOGIN\"\n     query       whoson command \"QUERY\"\n     logout      whoson command \"LOGOUT\"\n     editconfig  edit client configration file\n\nOPTIONS:\n   --help, -h  show help\n```\n#### Implemented commands\n\n* LOGIN\n* LOGOUT\n* QUERY\n* QUIT\n\n#### Reference\n\n* Original reference implementation of whoson.\n* Many japanese gopher products.\n* :tada: Many Thanks! :tada:\n\n#### Contribute\n\n1. fork a repository: github.com/tai-ga/gowhoson to github.com/you/repo\n2. get original code: go get github.com/tai-ga/gowhoson\n3. work on original code\n4. add remote to your repo: git remote add myfork https://github.com/you/repo.git\n5. push your changes: git push myfork\n6. create a new Pull Request\n\n- see [GitHub and Go: forking, pull requests, and go-getting](http://blog.campoy.cat/2014/03/github-and-go-forking-pull-requests-and.html)\n\n#### License\n\nMIT\n\n#### Author\n\nMasahiro Ono ([@tai-ga](https://twitter.com/tai_ga))\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftai-ga%2Fgowhoson","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Ftai-ga%2Fgowhoson","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Ftai-ga%2Fgowhoson/lists"}