Created
February 7, 2015 15:25
-
-
Save jemygraw/412a4fd557d875fd3037 to your computer and use it in GitHub Desktop.
download video from sina for example, http://video.weibo.com/show?fid=1034:0e906d53094c5d231bf09028af8ba9b1
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| package main | |
| //Usage: vsina http://video.weibo.com/show?fid=1034:0e906d53094c5d231bf09028af8ba9b1 | |
| import ( | |
| "bufio" | |
| "fmt" | |
| "github.com/astaxie/beego/httplib" | |
| "io" | |
| "io/ioutil" | |
| "net/url" | |
| "os" | |
| "regexp" | |
| "strings" | |
| "time" | |
| ) | |
| func help() { | |
| fmt.Println("Usage: vsina <VideoUrl>") | |
| } | |
| func fetch(videoUrl string) { | |
| req := httplib.Get(videoUrl) | |
| resp, err := req.Response() | |
| if err != nil { | |
| fmt.Println("fetch video url error,", err) | |
| return | |
| } | |
| defer resp.Body.Close() | |
| respData, err := ioutil.ReadAll(resp.Body) | |
| if err != nil { | |
| fmt.Println("read video url content error,", err) | |
| return | |
| } | |
| pattern := `flashvars="list=.*"` | |
| regx := regexp.MustCompile(pattern) | |
| flashVars := regx.FindString(string(respData)) | |
| if flashVars != "" { | |
| size := len(flashVars) | |
| m3u8Url, err := url.QueryUnescape(flashVars[16 : size-1]) | |
| if err != nil { | |
| fmt.Println(err) | |
| } else { | |
| fetchMovie(m3u8Url) | |
| } | |
| } else { | |
| fmt.Println("m3u8 playlist not found") | |
| } | |
| } | |
| func fetchMovie(m3u8Url string) { | |
| req := httplib.Get(m3u8Url) | |
| resp, respErr := req.Response() | |
| if respErr != nil { | |
| fmt.Println("fetch m3u8 playlist error,", respErr) | |
| return | |
| } | |
| defer resp.Body.Close() | |
| respData, readErr := ioutil.ReadAll(resp.Body) | |
| if readErr != nil { | |
| fmt.Println("read m3u8 playlist content error,", readErr) | |
| return | |
| } | |
| videoFolder := fmt.Sprintf("video_%d", time.Now().Unix()) | |
| mkdErr := os.Mkdir(videoFolder, 0775) | |
| if mkdErr != nil { | |
| fmt.Println("mkdir for m3u8 playlist failed,", mkdErr) | |
| return | |
| } | |
| m3u8Uri, _ := url.Parse(m3u8Url) | |
| sReader := strings.NewReader(string(respData)) | |
| bReader := bufio.NewScanner(sReader) | |
| bReader.Split(bufio.ScanLines) | |
| for bReader.Scan() { | |
| line := bReader.Text() | |
| if !strings.HasPrefix(line, "#") { | |
| tsFileName := line | |
| tsLocalFileName := fmt.Sprintf("%s/%s", videoFolder, line) | |
| tsFileUrl := fmt.Sprintf("%s://%s/%s", m3u8Uri.Scheme, m3u8Uri.Host, tsFileName) | |
| downloadTS(tsFileUrl, tsLocalFileName) | |
| } | |
| } | |
| fmt.Println() | |
| fmt.Println("Result:", videoFolder) | |
| } | |
| func downloadTS(tsFileUrl string, tsLocalFileName string) { | |
| fmt.Println("downloading", tsFileUrl) | |
| req := httplib.Get(tsFileUrl) | |
| resp, respErr := req.Response() | |
| if respErr != nil { | |
| fmt.Println("download ts ", tsFileUrl, "failed,", respErr) | |
| return | |
| } | |
| defer resp.Body.Close() | |
| tsFp, openErr := os.OpenFile(tsLocalFileName, os.O_CREATE|os.O_WRONLY, 0775) | |
| if openErr != nil { | |
| fmt.Println("open local file", tsLocalFileName, "failed,", openErr) | |
| return | |
| } | |
| defer tsFp.Close() | |
| _, copyErr := io.Copy(tsFp, resp.Body) | |
| if copyErr != nil { | |
| fmt.Println("download ts", tsFileUrl, " failed,", copyErr) | |
| } | |
| } | |
| func main() { | |
| argv := os.Args | |
| argc := len(argv) | |
| if argc != 2 { | |
| help() | |
| return | |
| } | |
| videoUrl := argv[1] | |
| fetch(videoUrl) | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
请问怎么用这个来下载视频? 我看了你的 post 在 http://golanghome.com/post/645.
但我不明白怎么从"http://us.sinaimg.cn/003BqToKjx06PK8lOidW0104010000220k01.m3u8?KID=unistore,video&Expires=1423376348&ssig=vuz2N%2FMVtm" 得到了 "http://us.sinaimg.cn/000KDKzUjx06PK8lMcpx01040100JzGp0k01.mp4". Url decode 之后就得到 "http://us.sinaimg.cn/003BqToKjx06PK8lOidW0104010000220k01.m3u8?KID=unistore,video&Expires=1423376348&ssig=vuz2N%2FMVtm". 但是然后 "000KDKzUjx06PK8lMcpx01040100JzGp0k01.mp4" 是哪里来的? 希望你能帮我.