private void Execute_Click(object sender, EventArgs e)
{
string messageid = MessageID.Text.ToString(); // Fetching Message ID
Status.Text = "Retrieving users";
AdminAPI adminresource = new AdminAPI(); // Retrieving users
int size = AdminAPI.usersize; // How many users are there?
guser[] userlist = new guser[size]; // Creating array to accomodate the users
userlist = AdminAPI.fillusers(AdminAPI.users, userlist); // Adding information to the array
Status.Text = "Users retrieved, retrieving email information";
int i = 0;
foreach (var item in userlist)
{
GmailAPI mailresource = new GmailAPI(item, messageid); // Fetching immutable ID for each user
}
Status.Text = "Email information retrieved. Performing deletion";
if (userlist != null)
{
foreach (var listitem in userlist)
{
if (listitem.immid != null)
{
GmailAPI delete = new GmailAPI();
delete.deleteemail(listitem); // Deleting email for each user
}
else
{
}
i++;
}
}
Status.Text = "Email deleted. You can now close this application";
}
// Create argumented constructor
public GmailAPI(guser user, string rfc822msgid)
{
// Retrieve certificate for service account
var certificate = new X509Certificate2("service_account.p12", "notasecret", X509KeyStorageFlags.Exportable);
// create credential using service account
var credential = new ServiceAccountCredential(new ServiceAccountCredential.Initializer(serviceaccount)
{
User = user.email, // user to impersonate
Scopes = gmscopes
}.FromCertificate(certificate));
// Create impersonated service
var service = new GmailService(new BaseClientService.Initializer()
{
ApplicationName = ApplicationName,
HttpClientInitializer = credential
});
// Create request for immutable ID based on RFC 822 ID
var request = service.Users.Messages.List(user.email);
request.Q = ("rfc822msgid:" + rfc822msgid);
// Execute requet
var response = request.Execute();
// Verify if there are usable results
if (response.Messages != null)
{
user.immid = response.Messages[0].Id; // Populate the user's immutable ID field with the information
}
else
{
user.immid = null; // else, keep the immutable ID as null
}
}
public void deleteemail(guser user)
{
// Retrieve certificate for service account
var certificate = new X509Certificate2("service_account.p12", "notasecret", X509KeyStorageFlags.Exportable);
var credential = new ServiceAccountCredential(new ServiceAccountCredential.Initializer(serviceaccount)
{
User = user.email,
Scopes = gmscopes
}.FromCertificate(certificate));
// Create impersonated service
var service = new GmailService(new BaseClientService.Initializer()
{
ApplicationName = ApplicationName,
HttpClientInitializer = credential
});
// Create request for message deletion task
var request = service.Users.Messages.Delete(user.email, user.immid);
// Execute request
var response = request.Execute();
}