public object ConvertSourceToObject(PublishedPropertyType propertyType, object source, bool preview)
{
// Get the value as a string
string str = source as string;
// Deserialize the string
return(String.IsNullOrWhiteSpace(str) ? null : GoogleOAuthData.Deserialize(str));
}
protected void Page_Load(object sender, EventArgs e) {
Title = "Google OAuth";
Callback = Request.QueryString["callback"];
ContentTypeAlias = Request.QueryString["contentTypeAlias"];
PropertyAlias = Request.QueryString["propertyAlias"];
Feature = Request.QueryString["feature"];
if (AuthState != null) {
NameValueCollection stateValue = Session["Skybrud.Social_" + AuthState] as NameValueCollection;
if (stateValue != null) {
Callback = stateValue["Callback"];
ContentTypeAlias = stateValue["ContentTypeAlias"];
PropertyAlias = stateValue["PropertyAlias"];
Feature = stateValue["Feature"];
}
}
// Get the prevalue options
GoogleOAuthPreValueOptions options = GoogleOAuthPreValueOptions.Get(ContentTypeAlias, PropertyAlias);
if (!options.IsValid) {
Content.Text += "Hold on now! The options of the underlying prevalue editor isn't valid.";
return;
}
// Configure the OAuth client based on the options of the prevalue options
GoogleOAuthClient client = new GoogleOAuthClient {
ClientId = options.ClientId,
ClientSecret = options.ClientSecret,
RedirectUri = options.RedirectUri
};
// Session expired?
if (AuthState != null && Session["Skybrud.Social_" + AuthState] == null) {
Content.Text = "<div class=\"error\">Session expired?</div>";
return;
}
// Check whether an error response was received from Google
if (AuthError != null) {
Content.Text = "<div class=\"error\">Error: " + AuthErrorDescription + "</div>";
if (AuthState != null) Session.Remove("Skybrud.Social:" + AuthState);
return;
}
string state;
// Redirect the user to the Google login dialog
if (AuthCode == null) {
// Generate a new unique/random state
state = Guid.NewGuid().ToString();
// Save the state in the current user session
Session["Skybrud.Social_" + state] = new NameValueCollection {
{ "Callback", Callback},
{ "ContentTypeAlias", ContentTypeAlias},
{ "PropertyAlias", PropertyAlias},
{ "Feature", Feature}
};
// Declare the scope
GoogleScopeCollection scope = new[] {
GoogleScope.OpenId,
GoogleScope.Email,
GoogleScope.Profile
};
// Construct the authorization URL
string url = client.GetAuthorizationUrl(state, scope, GoogleAccessType.Offline, GoogleApprovalPrompt.Force);
// Redirect the user
Response.Redirect(url);
return;
}
GoogleAccessTokenResponse info;
try {
info = client.GetAccessTokenFromAuthorizationCode(AuthCode);
} catch (Exception ex) {
Content.Text = "<div class=\"error\"><b>Unable to acquire access token</b><br />" + ex.Message + "</div>";
return;
}
try {
// Initialize the Google service
GoogleService service = GoogleService.CreateFromRefreshToken(client.ClientIdFull, client.ClientSecret, info.RefreshToken);
// Get information about the authenticated user
GoogleUserInfo user = service.GetUserInfo();
Content.Text += "<p>Hi <strong>" + user.Name + "</strong></p>";
Content.Text += "<p>Please wait while you're being redirected...</p>";
// Set the callback data
GoogleOAuthData data = new GoogleOAuthData {
Id = user.Id,
Name = user.Name,
Avatar = user.Picture,
ClientId = client.ClientIdFull,
ClientSecret = client.ClientSecret,
RefreshToken = info.RefreshToken
};
// Update the UI and close the popup window
Page.ClientScript.RegisterClientScriptBlock(GetType(), "callback", String.Format(
"self.opener." + Callback + "({0}); window.close();",
data.Serialize()
), true);
} catch (Exception ex) {
Content.Text = "<div class=\"error\"><b>Unable to get user information</b><br />" + ex.Message + "</div>";
return;
}
}