//-----------------------------------------------------------------------------
// Function: JoinGroup
//
// Purpose: Uses the invitation to join a group with a specific identity.
// Displays a message if there was an error.
//
// Parameters:
// pwzIdentity [in] : Path to identity file (not used w/password based groups)
// pwzFileName [in] : Path to the group invitation
// pwzPassword [in] : Password of group (if applicable)
//
// Returns: HRESULT
//
internal HRESULT JoinGroup(string pwzIdentity, string pwzFileName, string pwzPassword, bool pwdAuth)
{
HRESULT hr;
string wzInvitation = null;
g_dwAuth = pwdAuth ? PEER_GROUP_AUTHENTICATION_SCHEME.PEER_GROUP_PASSWORD_AUTHENTICATION : PEER_GROUP_AUTHENTICATION_SCHEME.PEER_GROUP_GMC_AUTHENTICATION;
try
{
using var fs = File.OpenRead(pwzFileName);
var bytes = new byte[MAX_INVITATION * 2];
fs.Read(bytes, 0, bytes.Length);
wzInvitation = Encoding.Unicode.GetString(bytes);
}
catch
{
hr = HRESULT.E_FAIL;
DisplayHrError("Error opening group invitation file", hr);
return(hr);
}
if (g_dwAuth == PEER_GROUP_AUTHENTICATION_SCHEME.PEER_GROUP_GMC_AUTHENTICATION)
{
// NULL parameter indicates that the cloud name will be selected automatically
hr = PeerGroupJoin(pwzIdentity, wzInvitation, default, out g_hGroup);
//-----------------------------------------------------------------------------
// Function: CreateGroup
//
// Purpose: Creates a new group with the friendly name.
//
// Parameters:
// pwzName [in] : Friendly name of group
// pwzIdentity [in] : Path to identity file of group creator
// pwzPassword [in] : Password of group (if applicable)
//
// Returns: HRESULT
//
internal HRESULT CreateGroup(string pwzName, string pwzIdentity, string pwzPassword, bool pwdAuth, bool globalScope)
{
HRESULT hr = HRESULT.S_OK;
// Retrieve user's selection on authentication method
if (pwdAuth)
{
g_dwAuth = PEER_GROUP_AUTHENTICATION_SCHEME.PEER_GROUP_PASSWORD_AUTHENTICATION;
}
else
{
g_dwAuth = PEER_GROUP_AUTHENTICATION_SCHEME.PEER_GROUP_GMC_AUTHENTICATION;
pwzPassword = null;
}
g_fGlobalScope = globalScope;
if (hr.Succeeded)
{
if (string.IsNullOrEmpty(pwzName))
{
hr = HRESULT.E_INVALIDARG;
DisplayHrError("Please enter a group name.", hr);
}
}
if (hr.Succeeded)
{
CleanupGroup();
PEER_GROUP_PROPERTIES props = new PEER_GROUP_PROPERTIES
{
dwSize = (uint)Marshal.SizeOf <PEER_GROUP_PROPERTIES>(),
pwzClassifier = "SampleChatGroup",
pwzFriendlyName = pwzName,
pwzCreatorPeerName = pwzIdentity,
dwAuthenticationSchemes = g_dwAuth
};
if (g_dwAuth == PEER_GROUP_AUTHENTICATION_SCHEME.PEER_GROUP_PASSWORD_AUTHENTICATION)
{
props.groupPasswordRole = PEER_GROUP_ROLE_ADMIN;
props.pwzGroupPassword = pwzPassword;
}
if (g_fGlobalScope)
{
props.pwzCloud = null;
hr = PeerGroupCreate(props, out g_hGroup);
}
else
{
hr = GetLocalCloudName(out var pwzCloudName);
if (hr.Succeeded)
{
props.pwzCloud = pwzCloudName;
hr = PeerGroupCreate(props, out g_hGroup);
}
}
if (hr.Failed)
{
if (hr == HRESULT.PEER_E_PASSWORD_DOES_NOT_MEET_POLICY)
{
DisplayHrError("Password does not meet local policy.", hr);
}
else
{
DisplayHrError("Failed to create a new group.", hr);
}
}
}
if (hr.Succeeded)
{
hr = PrepareToChat();
}
return(hr);
}
