// Parses the xml and returns what we need from the xml
func (episode *CrunchyrollEpisode) GetEpisodeInfo(quality string, cookies []*http.Cookie) error {
episode.Quality = quality // Sets the quality to the passed quality string
// Gets the HTML of the episode page
episodeReqHeaders := http.Header{}
episodeReqHeaders.Add("referer", "http://www.crunchyroll.com/"+strings.Split(episode.Path, "/")[1])
episodeResponse, err := anirip.GetHTTPResponse("GET",
episode.URL,
nil,
episodeReqHeaders,
cookies)
if err != nil {
return err
}
// Creates the goquery document that will be used to scrape for episode metadata
episodeDoc, err := goquery.NewDocumentFromResponse(episodeResponse)
if err != nil {
return anirip.Error{Message: "There was an error while reading the episode doc", Err: err}
}
// Scrapes the episode metadata from the episode page
episodeMetaDataJSON := episodeDoc.Find("script#liftigniter-metadata").First().Text()
// Parses the metadata json to a MetaData object
episodeMetaData := new(EpisodeMetaData)
if err := json.Unmarshal([]byte(episodeMetaDataJSON), episodeMetaData); err != nil {
return anirip.Error{Message: "There was an error while parsing episode metadata", Err: err}
}
// Formdata to indicate the source page
formData := url.Values{
"current_page": {episode.URL},
}
// Querystring for getting the crunchyroll standard config
queryString := url.Values{
"req": {"RpcApiVideoPlayer_GetStandardConfig"},
"media_id": {strconv.Itoa(episode.ID)},
"video_format": {getVideoFormat(episode.Quality)},
"video_quality": {getVideoQuality(episode.Quality)},
"auto_play": {"1"},
"aff": {"crunchyroll-website"},
"show_pop_out_controls": {"1"},
"pop_out_disable_message": {""},
"click_through": {"0"},
}
// Performs the HTTP Request that will get the XML
standardConfigReqHeaders := http.Header{}
standardConfigReqHeaders.Add("Host", "www.crunchyroll.com")
standardConfigReqHeaders.Add("Origin", "http://static.ak.crunchyroll.com")
standardConfigReqHeaders.Add("Content-type", "application/x-www-form-urlencoded")
standardConfigReqHeaders.Add("Referer", "http://static.ak.crunchyroll.com/versioned_assets/StandardVideoPlayer.f3770232.swf")
standardConfigReqHeaders.Add("X-Requested-With", "ShockwaveFlash/22.0.0.192")
standardConfigResponse, err := anirip.GetHTTPResponse("POST",
"http://www.crunchyroll.com/xml/?"+queryString.Encode(),
bytes.NewBufferString(formData.Encode()),
standardConfigReqHeaders,
cookies)
if err != nil {
return err
}
// Gets the xml string from the recieved xml response body
standardConfigResponseBody, err := ioutil.ReadAll(standardConfigResponse.Body)
if err != nil {
return anirip.Error{Message: "There was an error reading the xml response", Err: err}
}
xmlString := string(standardConfigResponseBody)
// Checks for an unsupported region first
if strings.Contains(xmlString, "<code>") && strings.Contains(xmlString, "</code>") {
if strings.SplitN(strings.SplitN(xmlString, "<code>", 2)[1], "</code>", 2)[0] == "4" {
return anirip.Error{Message: "This video is not available in your region", Err: err}
}
}
// Next performs some really basic parsing of the host url
xmlHostURL := ""
if strings.Contains(xmlString, "<host>") && strings.Contains(xmlString, "</host>") {
xmlHostURL = strings.SplitN(strings.SplitN(xmlString, "<host>", 2)[1], "</host>", 2)[0]
} else {
return anirip.Error{Message: "No hosts were found for the episode", Err: err}
}
// Same type of xml parsing to get the file
episodeFile := ""
if strings.Contains(xmlString, "<file>") && strings.Contains(xmlString, "</file>") {
episodeFile = strings.SplitN(strings.SplitN(xmlString, "<file>", 2)[1], "</file>", 2)[0]
} else {
return anirip.Error{Message: "No hosts were found for the episode", Err: err}
}
// Parses the URL in order to break out the two urls required for dumping
url, err := url.Parse(xmlHostURL)
if err != nil {
return anirip.Error{Message: "There was an error parsing episode information", Err: err}
}
// Sets the RTMP info recieved before returning
episode.Title = episodeMetaData.Name
episode.FileName = anirip.CleanFileName(episode.FileName + episode.Title) // Updates filename with title that we just scraped
episode.MediaInfo = RTMPInfo{
File: episodeFile,
URLOne: url.Scheme + "://" + url.Host + url.Path,
URLTwo: strings.Trim(url.RequestURI(), "/"),
}
return nil
}
// Parses the xml and returns what we need from the xml
func (episode *DaisukiEpisode) GetEpisodeInfo(quality string, cookies []*http.Cookie) error {
episode.Quality = quality // Sets the quality to the passed quality string
// Gets the HTML of the episode page
episodeReqHeaders := http.Header{}
episodeReqHeaders.Add("referer", "http://www.daisuki.net/us/en/anime/detail."+strings.Split(episode.Path, ".")[1]+".html")
episodeResponse, err := anirip.GetHTTPResponse("GET",
episode.URL,
nil,
episodeReqHeaders,
cookies)
if err != nil {
return err
}
// Creates the goquery document that will be used to scrape for episode info
episodeDoc, err := goquery.NewDocumentFromResponse(episodeResponse)
if err != nil {
return anirip.Error{Message: "There was an error while reading the episode doc", Err: err}
}
flashVars := map[string]string{}
episodeDoc.Find("div#movieFlash").Each(func(i int, flash *goquery.Selection) {
// Finds the movie/large episode and adds it to our map
flashVarString := flash.Find("script").First().Text()
flashVarString = strings.SplitN(flashVarString, "}", 2)[0]
flashVarString = strings.SplitN(flashVarString, "{", 2)[1]
flashVarString = strings.Replace(flashVarString, "'", "\"", -1)
flashVarString = strings.Replace(flashVarString, " ", "", -1)
flashVarString = strings.Replace(flashVarString, "\n", "", -1)
flashVarsArray := strings.Split(flashVarString, "\"")
newFlashVarsArray := []string{}
for f := 1; f < len(flashVarsArray)-1; f++ {
if !strings.Contains(flashVarsArray[f], ":") && !strings.Contains(flashVarsArray[f], ",") {
newFlashVarsArray = append(newFlashVarsArray, flashVarsArray[f])
}
}
// Declares and fills our map with all the key,values needed from flashvars
var e = 0
for e < len(newFlashVarsArray) {
flashVars[newFlashVarsArray[e]] = newFlashVarsArray[e+1]
e = e + 2
}
})
// Check for required fields in flashVars map
if _, ok := flashVars["s"]; !ok {
return anirip.Error{Message: "'s' was missing from flashvars", Err: err}
}
if _, ok := flashVars["country"]; !ok {
return anirip.Error{Message: "'country' was missing from flashvars", Err: err}
}
if _, ok := flashVars["init"]; !ok {
return anirip.Error{Message: "'init' was missing from flashvars", Err: err}
}
// Gets the current time which we will use in our flashvars request
nowMillis := strconv.FormatInt(time.Now().UnixNano()/1000000, 10)
// Performs the HTTP Request that will get the country code
countryReqHeaders := http.Header{}
countryReqHeaders.Add("referer", "https://www.crunchyroll.com/login")
countryReqHeaders.Add("content-type", "application/x-www-form-urlencoded")
countryResponse, err := anirip.GetHTTPResponse("GET",
"http://www.daisuki.net"+flashVars["country"]+"?cashPath="+nowMillis,
nil,
countryReqHeaders,
cookies)
if err != nil {
return err
}
// Reads the body and extracts the country code which will be used in later requests
body, err := ioutil.ReadAll(countryResponse.Body)
if err != nil {
return anirip.Error{Message: "There was an error getting the country code", Err: err}
}
countryCode := strings.Split(strings.Split(string(body), "<country_code>")[1], "</country_code>")[0]
// Generates a new random 256bit key
key := make([]byte, 32)
if _, err = io.ReadFull(crand.Reader, key); err != nil {
return anirip.Error{Message: "There was an error generating 256 bit key", Err: err}
}
api := new(ApiData)
if val, ok := flashVars["ss_id"]; ok {
api.SS_ID = val
}
if val, ok := flashVars["mv_id"]; ok {
api.MV_ID = val
}
if val, ok := flashVars["device_cd"]; ok {
api.Device_CD = val
}
if val, ok := flashVars["ss1_prm"]; ok {
api.SS1_PRM = val
}
if val, ok := flashVars["ss2_prm"]; ok {
api.SS2_PRM = val
}
if val, ok := flashVars["ss3_prm"]; ok {
api.SS3_PRM = val
}
plainApiJSON, err := json.Marshal(api)
if err != nil {
return anirip.Error{Message: "There was an error marshalling api json", Err: err}
}
// Pads plainApiJSON to equal full BlockSize if not full block multiple
if len(plainApiJSON)%aes.BlockSize != 0 {
padding := aes.BlockSize - (len(plainApiJSON) % aes.BlockSize)
paddedJSON := make([]byte, len(plainApiJSON)+padding)
for p, b := range plainApiJSON {
paddedJSON[p] = b
}
plainApiJSON = paddedJSON
}
// Creates a new aes cipher using the key we generated
cipherBlock, err := aes.NewCipher(key)
if err != nil {
return anirip.Error{Message: "There was an error generating aes cipherblock", Err: err}
}
cipherApiJSON := make([]byte, len(plainApiJSON))
iv := make([]byte, aes.BlockSize)
mode := cipher.NewCBCEncrypter(cipherBlock, iv)
mode.CryptBlocks(cipherApiJSON, plainApiJSON)
// Key uused to re-encrypt our request data to daisuki
var pemPublicKey = "-----BEGIN PUBLIC KEY-----\n" +
"MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFUkwl6OFLNms3VJQL7rb5bLfi\n" +
"/u8Lkyx2WaDFw78XPWAkZMLfc9aTtROuBv8b6PNnUpqzC/lpxWQFIhgfKgxR6lRq\n" +
"4SDT2NkIWV5O/3ZbOJzeCAoe9/G7+wdBHMVo23O39SHO3ycMv74N28KbGsnQ8tj0\n" +
"NZCYyv/ubQeRUCAHfQIDAQAB\n" +
"-----END PUBLIC KEY-----"
pemBlock, _ := pem.Decode([]byte(pemPublicKey))
pub, err := x509.ParsePKIXPublicKey(pemBlock.Bytes)
if err != nil {
return anirip.Error{Message: "There was an error x509 parsing our pem public key", Err: err}
}
pubKey := pub.(*rsa.PublicKey)
encodedKey, err := rsa.EncryptPKCS1v15(crand.Reader, pubKey, key)
if err != nil {
return anirip.Error{Message: "There was an error encrypting our generated key", Err: err}
}
// Constructs url params used in encrypted init request
queryParams := url.Values{
"s": {flashVars["s"]},
"c": {countryCode},
"e": {strings.Replace(episode.URL, ".", "%2", -1)},
"d": {base64.StdEncoding.EncodeToString(cipherApiJSON)},
"a": {base64.StdEncoding.EncodeToString(encodedKey)},
}
// Executes init request
bgnInitReqHeaders := http.Header{}
bgnInitReqHeaders.Add("Content-Type", "application/x-www-form-urlencoded")
bgnInitReqHeaders.Add("X-Requested-With", "ShockwaveFlash/20.0.0.306")
bgnInitResponse, err := anirip.GetHTTPResponse("GET",
"http://www.daisuki.net"+flashVars["init"]+"?"+queryParams.Encode(),
nil,
bgnInitReqHeaders,
cookies)
if err != nil {
return err
}
// Reads the body of our init requests response
body, err = ioutil.ReadAll(bgnInitResponse.Body)
if err != nil {
return anirip.Error{Message: "There was an error reading init response body", Err: err}
}
// Parses our json init response body
initBody := new(InitResponse)
if err = json.Unmarshal(body, initBody); err != nil {
return anirip.Error{Message: "There was an error unmarshalling init response body", Err: err}
}
// Attempts to decrypt the encrypted data recieved from InitResponse
inData, err := base64.StdEncoding.DecodeString(initBody.Rtn)
if err != nil {
return anirip.Error{Message: "Unable to base64 decode init return", Err: err}
}
// Pads inData to equal full BlockSize if not full block multiple
if len(inData)%aes.BlockSize != 0 {
padding := aes.BlockSize - (len(inData) % aes.BlockSize)
paddedJSON := make([]byte, len(inData)+padding)
for p, b := range inData {
paddedJSON[p] = b
}
inData = paddedJSON
}
outData := make([]byte, len(inData))
mode = cipher.NewCBCDecrypter(cipherBlock, iv)
mode.CryptBlocks(outData, inData)
// Finds the last non-zero byte of outData
end := len(outData)
for outData[end-1] == 0 {
end--
}
// If the end of the array isn't the length of outData resize
if end != len(outData) {
outData = outData[:end]
}
// Finally unmarshalls metadata json after decryption
metaData := new(MetaData)
if err = json.Unmarshal(outData, metaData); err != nil {
return anirip.Error{Message: "There was an error unmarshalling daisuki metadata", Err: err}
}
// Stores all the info we needed for getting the episodes info
episode.Title = strings.SplitN(metaData.TitleStr, " ", 2)[1]
episode.FileName = anirip.CleanFileName(episode.FileName + episode.Title) // Updates filename with title that we just scraped
episode.SubtitleInfo = TTMLInfo{
TTMLUrl: metaData.CaptionURL,
}
episode.MediaInfo = HDSInfo{
ManifestURL: metaData.PlayURL,
}
return nil
}
