commit 48f5447aa994235cd663703ece06600c31c78ae0
Author: aabacchus <bvnfuller@gmail.com>
Date: Fri, 19 Mar 2021 12:42:46 +0000
initial commit: uses a copy of who --ips output and parses
Diffstat:
| A | .gitignore | | | 2 | ++ |
| A | LICENSE | | | 202 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
| A | go.mod | | | 3 | +++ |
| A | where.go | | | 125 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
4 files changed, 332 insertions(+), 0 deletions(-)
diff --git a/.gitignore b/.gitignore
@@ -0,0 +1,2 @@
+creds.json
+where
diff --git a/LICENSE b/LICENSE
@@ -0,0 +1,202 @@
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diff --git a/go.mod b/go.mod
@@ -0,0 +1,3 @@
+module github.com/aabacchus/where
+
+go 1.15
diff --git a/where.go b/where.go
@@ -0,0 +1,125 @@
+/* Copyright © 2021 aabacchus
+ * Apache License, Version 2.0
+ * See LICENSE file for copyright and license details.
+ *
+ * Copyright (c) 2015 Matt Baer
+ * MIT license
+ */
+
+// this program is a rewrite of [https://github.com/thebaer]'s tildes/where
+// (MIT licence)
+// which plots a map of the locations of ctrl-c.club users.
+// However, that project has not been updated for several years, and it has a
+// small issue with showing many IPs at the location (0,0).
+// Therefore, as an excercise in Go and for the benefit of the ctrl-c.club community,
+// I'm trying to make what is basically the same thing.
+package main
+
+import (
+ "encoding/json"
+ "flag"
+ "fmt"
+ "io/ioutil"
+ "net/http"
+ "os"
+ "strings"
+)
+
+func main() {
+ apiKey := flag.String("k", "", "API key for ipstack")
+ flag.Parse()
+
+ ips, err := getTestIps("whoips")
+ if err != nil {
+ fmt.Printf("error reading sample who --ips file: %s\n", err.Error)
+ os.Exit(1)
+ }
+ lines := parseLines(ips)
+ var results = make([]person, len(lines))
+ for i, line := range lines {
+ if len(line) > 5 {
+ // if there's something messy with mosh, ignore it (for now)
+ continue
+ }
+ resp, err := ipLatLng(*apiKey, line[4])
+ if err != nil {
+ fmt.Println(err)
+ continue
+ }
+ results[i] = person{
+ Uname: line[0],
+ Lat: resp.Lat,
+ Lng: resp.Lng,
+ }
+
+ }
+ fmt.Println(results)
+
+}
+
+type person struct {
+ Uname string
+ Lat, Lng float64
+}
+
+func parseLines(ips []byte) [][]string {
+ var word string
+ var words [][]string
+ var line int = 0
+ words = append(words, []string{})
+ for _, ip := range ips {
+ if ip == ' ' {
+ if word == "" {
+ continue
+ }
+ words[line] = append(words[line], word)
+ word = ""
+ continue
+ }
+ if ip == '\n' {
+ words[line] = append(words[line], word)
+ words = append(words, []string{})
+ line++
+ word = ""
+ continue
+ }
+ word = word + string(ip)
+ }
+ words = words[:len(words)-1]
+ return words
+}
+
+func ipLatLng(apikey string, ips ...string) (IPResponse, error) {
+ query := fmt.Sprintf("http://api.ipstack.com/%s?access_key=%s", strings.Join(ips, ","), apikey)
+ resp, err := http.Get(query)
+ if err != nil {
+ return IPResponse{}, err
+ }
+ defer resp.Body.Close()
+ bytes, err := ioutil.ReadAll(resp.Body)
+ if err != nil {
+ return IPResponse{}, err
+ }
+ places := IPResponse{}
+
+ if err := json.Unmarshal(bytes, &places); err != nil {
+ return IPResponse{}, err
+ }
+ return places, nil
+}
+
+// IPResponse is a simple struct wrapping relevant responses from the ipstack API
+type IPResponse struct {
+ ip string `json:"ip"`
+ Lat float64 `json:"latitude"`
+ Lng float64 `json:"longitude"`
+}
+
+func getTestIps(fname string) ([]byte, error) {
+ f, err := os.Open(fname)
+ defer f.Close()
+ if err != nil {
+ return []byte{}, err
+ }
+ return ioutil.ReadAll(f)
+}
