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| package main
import ( "bytes" "crypto/md5" "encoding/hex" "errors" "fmt" "io/ioutil" "net/http" "os" "path/filepath" "regexp" "strings" "syscall" "time" "unsafe"
"github.com/antchfx/htmlquery" )
func main() {
fmt.Println("下载图片...") imagePath, err := DownloadImage(computerMobilePhoneAdaptiveRandomPicture, &ImageSize{ w: strings.Split(Size4k, ",")[0], h: strings.Split(Size4k, ",")[1], }) if err != nil { fmt.Println("下载图片失败: " + err.Error()) return } fmt.Println("设置桌面...") err = SetWindowsWallpaper(imagePath) if err != nil { fmt.Println("设置桌面背景失败: " + err.Error()) return } }
const ( UserAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4240.75 Safari/537.36" BingHomeURL = "https://cn.bing.com" CurrentPathDir = "cache/" RandBingImgURL = "https://img.tjit.net/bing/rand/" computerMobilePhoneAdaptiveRandomPicture = "https://img.tjit.net/bing/rand/" )
const ( Size1k string = "1920,1080" Size2k string = "2560,1440" Size4k string = "3840,2160" )
type ImageSize struct { w string h string }
func init() { _ = os.Mkdir(CurrentPathDir, 0755) }
func EncodeMD5(value string) string { m := md5.New() m.Write([]byte(value)) return hex.EncodeToString(m.Sum(nil)) }
func SetWindowsWallpaper(imagePath string) error { dll := syscall.NewLazyDLL("user32.dll") proc := dll.NewProc("SystemParametersInfoW") _t, _ := syscall.UTF16PtrFromString(imagePath) ret, _, _ := proc.Call(20, 1, uintptr(unsafe.Pointer(_t)), 0x1|0x2) if ret != 1 { return errors.New("系统调用失败") } return nil }
func GetBingBackgroundImageURL() (string, error) { client := http.Client{}
request, err := http.NewRequest("GET", BingHomeURL, nil) if err != nil { return "", err } request.Header.Set("user-agent", UserAgent)
response, err := client.Do(request) if err != nil { return "", err }
bodyRes, err := ioutil.ReadAll(response.Body) body := ioutil.NopCloser(bytes.NewReader(bodyRes)) body1 := ioutil.NopCloser(bytes.NewReader(bodyRes))
htmlDoc, err := htmlquery.Parse(body) if err != nil { return "", err } all, err := ioutil.ReadAll(body1) s := string(all) fmt.Println(s) item := htmlquery.FindOne(htmlDoc, "//div[@id=\"bgImgProgLoad\"]") result := htmlquery.SelectAttr(item, "data-ultra-definition-src") return BingHomeURL + result, nil }
func DownloadImage(imageURL string, size *ImageSize) (string, error) {
wRegexp := regexp.MustCompile("w=\\d+") hRegexp := regexp.MustCompile("h=\\d+") imageURL = wRegexp.ReplaceAllString(imageURL, "w="+size.w) imageURL = hRegexp.ReplaceAllString(imageURL, "h="+size.h)
client := http.Client{}
request, err := http.NewRequest("GET", imageURL, nil) if err != nil { return "", err }
response, err := client.Do(request) if err != nil { return "", err } body, err := ioutil.ReadAll(response.Body) if err != nil { return "", err }
day := time.Now().Format("2006-01-02")
fileName := EncodeMD5(imageURL) path := CurrentPathDir + fmt.Sprintf("[%sx%s][%s]%s", size.w, size.h, day, fileName) + ".jpg"
err = ioutil.WriteFile(path, body, 0755) if err != nil { return "", err } absPath, err := filepath.Abs(path) if err != nil { return "", err }
return absPath, nil }
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