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codeforces_client.go
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codeforces_client.go
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package codeforces_client
import (
"encoding/json"
"io"
"net/http"
"net/url"
"os"
"path/filepath"
"github.com/Arapak/sio-tool/cookiejar"
"github.com/fatih/color"
)
type CodeforcesClient struct {
Jar *cookiejar.Jar `json:"cookies"`
Handle string `json:"handle"`
HandleOrEmail string `json:"handle_or_email"`
Password string `json:"password"`
Ftaa string `json:"ftaa"`
Bfaa string `json:"bfaa"`
LastSubmission *Info `json:"last_submission"`
host string
proxy string
path string
client *http.Client
}
var Instance *CodeforcesClient
func Init(path, host, proxy string) {
jar, _ := cookiejar.New(nil)
c := &CodeforcesClient{Jar: jar, LastSubmission: nil, path: path, host: host, proxy: proxy, client: nil}
if err := c.load(); err != nil {
color.Red(err.Error())
color.Green("Create a new session in %v", path)
}
Proxy := http.ProxyFromEnvironment
if len(proxy) > 0 {
proxyURL, err := url.Parse(proxy)
if err != nil {
color.Red(err.Error())
color.Green("Use default proxy from environment")
} else {
Proxy = http.ProxyURL(proxyURL)
}
}
c.client = &http.Client{Jar: c.Jar, Transport: &http.Transport{Proxy: Proxy}}
if err := c.save(); err != nil {
color.Red(err.Error())
}
Instance = c
}
func (c *CodeforcesClient) load() (err error) {
file, err := os.Open(c.path)
if err != nil {
if os.IsNotExist(err) {
return nil
}
return
}
defer file.Close()
bytes, err := io.ReadAll(file)
if err != nil {
return err
}
return json.Unmarshal(bytes, c)
}
func (c *CodeforcesClient) save() (err error) {
data, err := json.MarshalIndent(c, "", " ")
if err == nil {
err = os.MkdirAll(filepath.Dir(c.path), os.ModePerm)
if err == nil {
err = os.WriteFile(c.path, data, 0644)
}
}
if err != nil {
color.Red("Cannot save session to %v\n%v", c.path, err.Error())
}
return
}