private string updateCredentialInXml(string credentials, SocialConnector connector, string element, string value)
{
if (string.IsNullOrEmpty(credentials))
credentials = "<socialconnector></socialconnector>";
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.LoadXml(credentials);
XmlElement elemSc = xmlDoc.FirstChild as XmlElement;
//connector.ToString()
XmlNodeList nl = elemSc.GetElementsByTagName(connector.ToString());
if (nl.Count == 0)
{
XmlElement elemCon = xmlDoc.CreateElement(connector.ToString());
XmlElement el = xmlDoc.CreateElement("key");
XmlAttribute attr = xmlDoc.CreateAttribute("name");
attr.Value = element;
el.Attributes.Append(attr);
attr = xmlDoc.CreateAttribute("value");
attr.Value = value;
el.Attributes.Append(attr);
elemCon.AppendChild(el);
elemSc.AppendChild(elemCon);
}
else
{
XmlElement elem = nl[0] as XmlElement;
if (elem != null)
{
XmlNodeList elemList = elem.GetElementsByTagName("key");
bool found = false;
foreach (XmlNode node in elemList)
{
XmlElement el = node as XmlElement;
if (el.HasAttributes &&
el.HasAttribute("name") &&
el.GetAttribute("name") == element)
{
found = true;
el.SetAttribute("value", value);
break;
}
}
if (!found)
{
XmlElement el1 = xmlDoc.CreateElement("key");
XmlAttribute attr = xmlDoc.CreateAttribute("name");
attr.Value = element;
el1.Attributes.Append(attr);
attr = xmlDoc.CreateAttribute("value");
attr.Value = value;
el1.Attributes.Append(attr);
elem.AppendChild(el1);
}
}
}
return xmlDoc.OuterXml;
}
/* Social connector credentials format example
<socialconnector>
<credentials id='twitter'>
<key name='client_id' value='...'/>
<key name='client_secret' value='...'/>
<key name='access_token' value='...'/>
</credentials>
<credentials id='facebook'>
<key name='client_id' value='...'/>
<key name='client_secret' value='...'/>
<key name='access_token' value='...'/>
</credentials>
<credentials id='soundcloud'>
<key name='client_id' value='...'/>
<key name='client_secret' value='...'/>
<key name='access_token' value='...'/>
</credentials>
</socialconnector>
*/
private string getCredentialFromXml(string credentials, SocialConnector connector, string element)
{
XmlDocument doc = new XmlDocument();
doc.LoadXml(credentials);
XmlElement elemSc = doc.FirstChild as XmlElement;
if (elemSc != null)
{
XmlNodeList nl = elemSc.GetElementsByTagName(connector.ToString());
if (nl.Count == 0)
return string.Empty;
XmlElement elem = nl[0] as XmlElement;
// If the element wasn't found we bail out with an empty string
if (elem == null)
return string.Empty;
XmlNodeList elemList = elem.GetElementsByTagName("key");
// if there are no child elements, bail out with an empty string
// search through the list for the specified child
foreach (XmlNode node in elemList)
{
XmlElement el = node as XmlElement;
if (el != null && (el.HasAttributes &&
el.HasAttribute("name") &&
el.GetAttribute("name") == element))
return el.GetAttribute("value");
}
}
return string.Empty;
}