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Fixes #192
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,111 @@ | ||
| package main | ||
|
|
||
| import ( | ||
| "encoding/json" | ||
| "flag" | ||
| "fmt" | ||
| "net/http" | ||
| "os" | ||
| "sort" | ||
| "strings" | ||
| "time" | ||
|
|
||
| "github.com/qdm12/golibs/network" | ||
| ) | ||
|
|
||
| func main() { | ||
| os.Exit(_main()) | ||
| } | ||
|
|
||
| func _main() int { | ||
| provider := flag.String("provider", "purevpn", "VPN provider to map location to subdomain, can be 'purevpn'") | ||
| flag.Parse() | ||
|
|
||
| client := network.NewClient(5 * time.Second) | ||
| switch *provider { | ||
| case "purevpn": | ||
| servers, warnings, err := purevpn(client) | ||
| if err != nil { | ||
| fmt.Println(err) | ||
| return 1 | ||
| } | ||
| for _, server := range servers { | ||
| fmt.Printf( | ||
| "{subdomain: %q, region: %q, country: %q, city: %q},\n", | ||
| server.subdomain, server.region, server.country, server.city, | ||
| ) | ||
| } | ||
| fmt.Print("\n\n") | ||
| for _, warning := range warnings { | ||
| fmt.Println(warning) | ||
| } | ||
| default: | ||
| fmt.Printf("Provider %q is not supported\n", *provider) | ||
| return 1 | ||
| } | ||
| return 0 | ||
| } | ||
|
|
||
| type purevpnServer struct { | ||
| region string | ||
| country string | ||
| city string | ||
| subdomain string // without -tcp or -udp suffix | ||
| } | ||
|
|
||
| func purevpn(client network.Client) (servers []purevpnServer, warnings []string, err error) { | ||
| content, status, err := client.GetContent("https://support.purevpn.com/vpn-servers") | ||
| if err != nil { | ||
| return nil, nil, err | ||
| } else if status != http.StatusOK { | ||
| return nil, nil, fmt.Errorf("HTTP status %d from Purevpn", status) | ||
| } | ||
| const jsonPrefix = "<script>var servers = " | ||
| const jsonSuffix = "</script>" | ||
| s := string(content) | ||
| jsonPrefixIndex := strings.Index(s, jsonPrefix) | ||
| if jsonPrefixIndex == -1 { | ||
| return nil, nil, fmt.Errorf("cannot find prefix %s in html", jsonPrefix) | ||
| } | ||
| if len(s[jsonPrefixIndex:]) == len(jsonPrefix) { | ||
| return nil, nil, fmt.Errorf("no body after json prefix %s", jsonPrefix) | ||
| } | ||
| s = s[jsonPrefixIndex+len(jsonPrefix):] | ||
| endIndex := strings.Index(s, jsonSuffix) | ||
| s = s[:endIndex] | ||
| var data []struct { | ||
| Region string `json:"region_name"` | ||
| Country string `json:"country_name"` | ||
| City string `json:"city_name"` | ||
| TCP string `json:"tcp"` | ||
| UDP string `json:"udp"` | ||
| } | ||
| if err := json.Unmarshal([]byte(s), &data); err != nil { | ||
| return nil, nil, err | ||
| } | ||
| sort.Slice(data, func(i, j int) bool { | ||
| if data[i].Region == data[j].Region { | ||
| if data[i].Country == data[j].Country { | ||
| return data[i].City < data[j].City | ||
| } | ||
| return data[i].Country < data[j].Country | ||
| } | ||
| return data[i].Region < data[j].Region | ||
| }) | ||
| for i := range data { | ||
| if data[i].UDP == "" && data[i].TCP == "" { | ||
| warnings = append(warnings, fmt.Sprintf("server %s %s %s does not support TCP and UDP for openvpn", data[i].Region, data[i].Country, data[i].City)) | ||
| continue | ||
| } | ||
| if data[i].UDP == "" || data[i].TCP == "" { | ||
| warnings = append(warnings, fmt.Sprintf("server %s %s %s does not support TCP or udp for openvpn", data[i].Region, data[i].Country, data[i].City)) | ||
| } | ||
| servers = append(servers, purevpnServer{ | ||
| region: data[i].Region, | ||
| country: data[i].Country, | ||
| city: data[i].City, | ||
| subdomain: strings.TrimSuffix(data[i].TCP, "-tcp.pointtoserver.com"), | ||
| }) | ||
| } | ||
| return servers, warnings, nil | ||
| } |
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