Esistono esempi di codice C# dell'API youtube (o API gdata) che utilizzano OpenID e OAuth?C# esempi di API youtube (o API gdata) utilizzando OpenID e OAuth
O forse un post/articolo con esempi di codice
esempi di codice di utilizzo dotnetoauth con l'API di YouTube sarebbe troppo grande
Avendo appena trascorso le ultime 2 settimane di ottenere una connessione Oauth su YouTube per avere un autorizzazione per accedere alle playlist, posso inviarti un carico di lezioni che ti aiuteranno. Posso postare sezioni qui, ma c'è più di quello che mi permetterà di pubblicare!
Mentre ora posso accedere ai feed privati, non posso caricare i video con OAuth. I documenti di google dicono che funziona, ma l'ultimo SDK pubblicato vero era febbraio dello scorso anno. Puoi scaricare il codice sorgente e compilarlo, ma ho ancora avuto problemi e costruito le mie lezioni. Ho finito per ricorrere a ClientLogin per gli upload di video, ma OAuth per tutto il resto ...
Inviami una nota con il tuo indirizzo email e quello che stai cercando di ottenere e ti invierò le classi i ' ve ora scritto.
Heres po 'di codice: Primo Una classe che fa la firma OAuth e alcune altre cose come la creazione di intestazione:
#Region "Imports"
Imports System.Text
Imports System.Security.Cryptography
#End Region
Public NotInheritable Class SharedOAuth
#Region "Class Declarations"
Private Const unreservedChars As String = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_.~"
Private Const OAuthVersion As String = "1.0"
Private Const OAuthParameterPrefix As String = "oauth_"
Private Const OAuthParameterExclusionPrefix As String = "xoauth_"
Private Const OAuthConsumerKeyKey As String = "oauth_consumer_key"
Private Const OAuthCallbackKey As String = "oauth_callback"
Private Const OAuthVersionKey As String = "oauth_version"
Private Const OAuthSignatureMethodKey As String = "oauth_signature_method"
Private Const OAuthSignatureKey As String = "oauth_signature"
Private Const OAuthTimestampKey As String = "oauth_timestamp"
Private Const OAuthNonceKey As String = "oauth_nonce"
Private Const OAuthTokenKey As String = "oauth_token"
Private Const OAuthTokenSecretKey As String = "oauth_token_secret"
#End Region
#Region "Constructor"
Private Sub New()
'prevent construction
End Sub
#End Region
#Region "Shared Functions"
Public Shared Function GetSignatureTypeNameFromType(ByVal signatureType As enumerations.OAuthEnumerations.SignatureTypes) As String
Select Case signatureType
Case enumerations.OAuthEnumerations.SignatureTypes.HmacSha1
Return "HMAC-SHA1"
Case Else
Return String.Empty
End Select
End Function
Public Shared Function GenerateTimeStamp() As String
'Implementation of UNIX current UTC time
Dim _ts As TimeSpan = DateTime.UtcNow - New DateTime(1970, 1, 1, 0, 0, 0, 0)
Return Convert.ToInt64(_ts.TotalSeconds).ToString(CultureInfo.InvariantCulture)
End Function
Public Shared Function GenerateNonce() As String
'Some random Number
Return New Random().Next(123400, 9999999).ToString
End Function
Public Shared Function UrlEncode(ByVal value As String) As String
Dim _result As New StringBuilder
If (String.IsNullOrEmpty(value)) Then
Return value
End If
For Each _symbol As Char In value
If unreservedChars.IndexOf(_symbol) <> -1 Then
_result.Append(_symbol)
Else
_result.Append(String.Format("%{0}", String.Format("{0:X2}", Asc(_symbol))))
End If
Next
Return _result.ToString
End Function
''' <summary>
'''Generates a signature using the specified signatureType
''' </summary>
''' <param name="url">The full url that needs to be signed including its non OAuth url parameters</param>
''' <param name="consumerKey">The consumer key</param>
''' <param name="consumerSecret">The consumer seceret</param>
''' <param name="token">The token, if available. If not available pass null or an empty string</param>
''' <param name="tokenSecret">The token secret, if available. If not available pass null or an empty string</param>
''' <param name="httpMethod">The http method used. Must be a valid HTTP method verb (POST,GET,PUT, etc)</param>
''' <param name="signatureType">The type of signature to use</param>
''' <returns>A base64 string of the hash value</returns>
Public Shared Function GenerateSignature(ByVal url As Uri, ByVal consumerKey As String, ByVal consumerSecret As String, ByVal token As String, ByVal tokenSecret As String, ByVal httpMethod As String, ByVal timeStamp As String, ByVal nonce As String, ByVal signatureType As enumerations.OAuthEnumerations.SignatureTypes, ByRef normalizedUrl As String, ByRef normalizedRequestParameters As String) As String
normalizedUrl = String.Empty
normalizedRequestParameters = String.Empty
Dim _signatureBase As String
Dim _hash As HMACSHA1
Select Case signatureType
Case enumerations.OAuthEnumerations.SignatureTypes.HmacSha1
_signatureBase = GenerateSignatureBase(url, consumerKey, token, tokenSecret, httpMethod, timeStamp, nonce, enumerations.OAuthEnumerations.SignatureTypes.HmacSha1, normalizedUrl, normalizedRequestParameters)
Dim _sb As New StringBuilder
With _sb
.Append(UrlEncode(consumerSecret))
.Append("&")
If (String.IsNullOrEmpty(tokenSecret)) Then
.Append("")
Else
.Append(UrlEncode(tokenSecret))
End If
End With
_hash = New HMACSHA1
_hash.Key = Encoding.ASCII.GetBytes(_sb.ToString)
Return GenerateSignatureUsingHash(_signatureBase, _hash)
Case Else
Throw New NotImplementedException
End Select
End Function
Public Shared Function GenerateSignatureUsingHash(ByVal signatureBase As String, ByVal hash As HashAlgorithm) As String
Return ComputeHash(hash, signatureBase)
End Function
Public Shared Function GenerateSignatureBase(ByVal url As Uri, ByVal consumerKey As String, ByVal token As String, ByVal tokenSecret As String, ByVal httpMethod As String, ByVal timeStamp As String, ByVal nonce As String, ByVal signatureType As enumerations.OAuthEnumerations.SignatureTypes, ByRef normalizedUrl As String, ByRef normalizedRequestParameters As String) As String
Dim _SignatureTypeName As String = GetSignatureTypeNameFromType(signatureType)
If String.IsNullOrEmpty(token) Then
token = String.Empty
End If
If String.IsNullOrEmpty(tokenSecret) Then
tokenSecret = String.Empty
End If
If String.IsNullOrEmpty(consumerKey) Then
Throw New ArgumentNullException("consumerKey")
End If
If String.IsNullOrEmpty(httpMethod) Then
Throw New ArgumentNullException("httpMethod")
End If
If String.IsNullOrEmpty(_SignatureTypeName) Then
Throw New ArgumentNullException("SignatureType")
End If
normalizedUrl = String.Empty
normalizedRequestParameters = String.Empty
Dim _params As List(Of QueryParameter) = getqueryparameters(url.Query)
With _params
.Add(New QueryParameter(OAuthVersionKey, OAuthVersion))
.Add(New QueryParameter(OAuthNonceKey, nonce))
.Add(New QueryParameter(OAuthTimestampKey, timeStamp))
.Add(New QueryParameter(OAuthSignatureMethodKey, _SignatureTypeName))
.Add(New QueryParameter(OAuthConsumerKeyKey, consumerKey))
If Not (String.IsNullOrEmpty(token)) Then
.Add(New QueryParameter(OAuthTokenKey, token))
End If
.Sort(New QueryParameterComparer)
End With
normalizedUrl = String.Format("{0}://{1}", url.Scheme, url.Host)
If Not ((url.Scheme = "http" AndAlso url.Port = 80) OrElse (url.Scheme = "https" AndAlso url.Port = 443)) Then
normalizedUrl = String.Format("{0}:{1}", normalizedUrl, url.Port)
End If
normalizedUrl = String.Format("{0}{1}", normalizedUrl, url.AbsolutePath)
normalizedRequestParameters = NormalizeRequestParameters(_params)
Dim _sb As New StringBuilder
With _sb
.AppendFormat(CultureInfo.InvariantCulture, "{0}&", httpMethod.ToUpper)
.AppendFormat(CultureInfo.InvariantCulture, "{0}&", UrlEncode(normalizedUrl))
.AppendFormat(CultureInfo.InvariantCulture, "{0}", UrlEncode(normalizedRequestParameters))
End With
Return _sb.ToString
End Function
#End Region
#Region "Private Methods"
Private Shared Function ComputeHash(ByVal hashAlgorithm As HashAlgorithm, ByVal data As String) As String
If hashAlgorithm Is Nothing Then
Throw New ArgumentNullException("hashAlgorithm")
End If
If String.IsNullOrEmpty(data) Then
Throw New ArgumentNullException("data")
End If
Dim _dataBuffer As Byte() = Encoding.ASCII.GetBytes(data)
Dim _hashBytes As Byte() = hashAlgorithm.ComputeHash(_dataBuffer)
Return Convert.ToBase64String(_hashBytes)
End Function
Private Shared Function NormalizeRequestParameters(ByVal parameters As IList(Of QueryParameter)) As String
Dim _p As QueryParameter
Dim _sb As New StringBuilder
For i As Integer = 0 To parameters.count - 1
_p = parameters(i)
_sb.AppendFormat(CultureInfo.InvariantCulture, "{0}={1}", _p.Name, _p.Value)
If i < parameters.count - 1 Then
_sb.Append("&")
End If
Next
Return _sb.ToString
End Function
Private Shared Function GetQueryParameters(ByVal parameters As String) As List(Of QueryParameter)
If (parameters.StartsWith("?")) Then
parameters = parameters.Remove(0, 1)
End If
Dim _result As New List(Of QueryParameter)
Dim _p As String() = parameters.Split("&"c)
Dim _temp As String()
If Not (String.IsNullOrEmpty(parameters)) Then
For Each s As String In _p
If Not (String.IsNullOrEmpty(s)) AndAlso Not (s.StartsWith(OAuthParameterExclusionPrefix)) Then 'AndAlso (s.StartsWith(OAuthParameterPrefix)) Then
If s.IndexOf("=") > -1 Then
_temp = s.Split("="c)
_result.Add(New QueryParameter(_temp(0), _temp(1)))
Else
_result.Add(New QueryParameter(s, String.Empty))
End If
End If
Next
End If
Return _result
End Function
#End Region
End Class
Poi, ho consumano questa è una classe wrapper per aiutare rendere le chiamate più facili:
Public Function SignCommandUrl(ByVal commandUrl As String) As String
Return SignCommandUrl(commandUrl, Nothing, Nothing)
End Function
Public Function SignCommandUrl(ByVal commandUrl As String, ByVal overrideToken As String, ByVal overrideTokenSecret As String) As String
Dim _commandUri = New Uri(commandUrl)
Dim _oAuthSignature As String
Dim _oAuthTimeStamp As String = SharedOAuth.GenerateTimeStamp
Dim _oAuthNOnce As String = SharedOAuth.GenerateNonce
Dim _oAuth_normalized_url As String = String.Empty
Dim _oAuth_normalized_params As String = String.Empty
If Not (String.IsNullOrEmpty(overrideToken)) OrElse Not (String.IsNullOrEmpty(overrideTokenSecret)) Then
_oAuthSignature = SharedOAuth.GenerateSignature(_commandUri, CONSUMER_KEY, CONSUMER_SECRET, overrideToken, overrideTokenSecret, "GET", _oAuthTimeStamp, _oAuthNOnce, enumerations.OAuthEnumerations.SignatureTypes.HmacSha1, _oAuth_normalized_url, _oAuth_normalized_params)
Else
If MasterAccessToken Is Nothing Then
_oAuthSignature = SharedOAuth.GenerateSignature(_commandUri, CONSUMER_KEY, CONSUMER_SECRET, String.Empty, String.Empty, "GET", _oAuthTimeStamp, _oAuthNOnce, enumerations.OAuthEnumerations.SignatureTypes.HmacSha1, _oAuth_normalized_url, _oAuth_normalized_params)
Else
_oAuthSignature = SharedOAuth.GenerateSignature(_commandUri, CONSUMER_KEY, CONSUMER_SECRET, SharedOAuth.UrlEncode(MasterAccessToken.Token), MasterAccessToken.TokenSecret, "GET", _oAuthTimeStamp, _oAuthNOnce, enumerations.OAuthEnumerations.SignatureTypes.HmacSha1, _oAuth_normalized_url, _oAuth_normalized_params)
End If
End If
'Get a token
Dim _sb As New System.Text.StringBuilder
With _sb
.Append(_oAuth_normalized_url)
.Append("?")
.Append(_oAuth_normalized_params)
.Append("&")
.Append("oauth_signature")
.Append("=")
.Append(SharedOAuth.UrlEncode(_oAuthSignature))
End With
Return _sb.ToString
End Function
Public Function BuildPostHeader(ByVal commandUrl As String) As String
Dim _commandUri = New Uri(commandUrl)
Dim _oAuthTimeStamp As String = SharedOAuth.GenerateTimeStamp
Dim _oAuthNOnce As String = SharedOAuth.GenerateNonce
Dim _oAuth_normalized_url As String = String.Empty
Dim _oAuth_normalized_params As String = String.Empty
Dim _oAuthSignature As String
If MasterAccessToken Is Nothing Then
_oAuthSignature = SharedOAuth.GenerateSignature(_commandUri, CONSUMER_KEY, CONSUMER_SECRET, String.Empty, String.Empty, "POST", _oAuthTimeStamp, _oAuthNOnce, enumerations.OAuthEnumerations.SignatureTypes.HmacSha1, _oAuth_normalized_url, _oAuth_normalized_params)
Else
_oAuthSignature = SharedOAuth.GenerateSignature(_commandUri, CONSUMER_KEY, CONSUMER_SECRET, SharedOAuth.UrlEncode(MasterAccessToken.Token), MasterAccessToken.TokenSecret, "POST", _oAuthTimeStamp, _oAuthNOnce, enumerations.OAuthEnumerations.SignatureTypes.HmacSha1, _oAuth_normalized_url, _oAuth_normalized_params)
End If
Dim _sb As New System.Text.StringBuilder
With _sb
.Append("Authorization: OAuth oauth_version=""1.0"", ")
.AppendFormat("oauth_nonce=""{0}"", ", _oAuthNOnce)
.AppendFormat("oauth_timestamp=""{0}"", ", _oAuthTimeStamp)
.AppendFormat("oauth_consumer_key=""{0}"", ", CONSUMER_KEY)
.AppendFormat("oauth_token=""{0}"", ", MasterAccessToken.Token)
.Append("oauth_signature_method=""HMAC-SHA1"", ")
.AppendFormat("oauth_signature=""{0}""", _oAuthSignature)
End With
Return _sb.ToString
End Function
Public Shared Function PostRequestReturnCollection(ByVal commandUrl As String) As NameValueCollection
Dim _nameValCollection As NameValueCollection
Dim _request As HttpWebRequest = CType(WebRequest.Create(commandUrl), HttpWebRequest)
Using _response As HttpWebResponse = CType(_request.GetResponse, HttpWebResponse)
Using _reader As TextReader = New StreamReader(_response.GetResponseStream)
_nameValCollection = HttpUtility.ParseQueryString(_reader.ReadToEnd)
End Using
End Using
Return _nameValCollection
End Function