8000 Support user@host:port syntax for SSH Transport by SteveL-MSFT · Pull Request #6558 · PowerShell/PowerShell · GitHub
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Support user@host:port syntax for SSH Transport #6558

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Merged
merged 2 commits into from
Apr 6, 2018
Merged

Support user@host:port syntax for SSH Transport #6558

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bdd27ae
support user@host:port syntax for SSH Transport
SteveL-MSFT Apr 4, 2018
1c6af72
address PR feedback
SteveL-MSFT Apr 4, 2018
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54 changes: 49 additions & 5 deletions src/System.Management.Automation/engine/remoting/commands/PSRemotingCmdlet.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -825,6 +825,42 @@ internal static void ValidateSpecifiedAuthentication(PSCredential credential, st

#endregion

/// <summary>
/// Parse a hostname used with SSH Transport to get embedded
/// username and/or port.
/// </summary>
/// <param name="hostname">host name to parse</param>
/// <param name="host">resolved target host</param>
/// <param name="userName">resolved target user name</param>
/// <param name="port">resolved target port</param>
protected void ParseSshHostName(string hostname, out string host, out string userName, out int port)
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This can be a static method.

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Need access to this so can't be static

{
host = hostname;
userName = this.UserName;
port = this.Port;
try
{
Uri uri = new System.Uri("ssh://" + hostname);
host = ResolveComputerName(uri.Host);
ValidateComputerName(new string[]{host});
if (uri.UserInfo != String.Empty)
{
userName = uri.UserInfo;
}
if (uri.Port != -1)
{
port = uri.Port;
}
}
catch (UriFormatException)
{
ThrowTerminatingError(new ErrorRecord(
new ArgumentException(PSRemotingErrorInvariants.FormatResourceString(
RemotingErrorIdStrings.InvalidComputerName)), "PSSessionInvalidComputerName",
ErrorCategory.InvalidArgument, hostname));
}
}

/// <summary>
/// Parse the Connection parameter HashTable array.
/// </summary>
Expand Down Expand Up @@ -856,8 +892,16 @@ internal SSHConnection[] ParseSSHConnectionHashTable()
if (paramName.Equals(ComputerNameParameter, StringComparison.OrdinalIgnoreCase) || paramName.Equals(HostNameAlias, StringComparison.OrdinalIgnoreCase))
{
var resolvedComputerName = ResolveComputerName(GetSSHConnectionStringParameter(item[paramName]));
ValidateComputerName(new string[] { resolvedComputerName });
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Do we want to no longer validate the host name?

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I suppose I can call ValidateComputerName after extracting the hostname

connectionInfo.ComputerName = resolvedComputerName;
ParseSshHostName(resolvedComputerName, out string host, out string userName, out int port);
connectionInfo.ComputerName = host;
if (userName != String.Empty)
{
connectionInfo.UserName = userName;
}
if (port != -1)
{
connectionInfo.Port = port;
}
}
else if (paramName.Equals(UserNameParameter, StringComparison.OrdinalIgnoreCase))
{
Expand Down Expand Up @@ -1337,11 +1381,11 @@ protected virtual void CreateHelpersForSpecifiedComputerNames()
/// </summary>
protected void CreateHelpersForSpecifiedSSHComputerNames()
{
ValidateComputerName(ResolvedComputerNames);

foreach (string computerName in ResolvedComputerNames)
{
var sshConnectionInfo = new SSHConnectionInfo(this.UserName, computerName, this.KeyFilePath, this.Port);
ParseSshHostName(computerName, out string host, out string userName, out int port);

var sshConnectionInfo = new SSHConnectionInfo(userName, host, this.KeyFilePath, port);
var typeTable = TypeTable.LoadDefaultTypeFiles();
var remoteRunspace = RunspaceFactory.CreateRunspace(sshConnectionInfo, this.Host, typeTable) as RemoteRunspace;
var pipeline = CreatePipeline(remoteRunspace);
Expand Down
3 changes: 2 additions & 1 deletion src/System.Management.Automation/engine/remoting/commands/PushRunspaceCommand.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -1281,7 +1281,8 @@ private RemoteRunspace GetRunspaceForContainerSession()
/// </summary>
private RemoteRunspace GetRunspaceForSSHSession()
{
var sshConnectionInfo = new SSHConnectionInfo(this.UserName, ResolveComputerName(HostName), this.KeyFilePath, this.Port);
ParseSshHostName(HostName, out string host, out string userName, out int port);
var sshConnectionInfo = new SSHConnectionInfo(userName, host, this.KeyFilePath, port);
var typeTable = TypeTable.LoadDefaultTypeFiles();

// Use the class _tempRunspace field while the runspace is being opened so that StopProcessing can be handled at that time.
Expand Down
10 changes: 6 additions & 4 deletions src/System.Management.Automation/engine/remoting/commands/newrunspacecommand.cs
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Expand Up @@ -1067,18 +1067,20 @@ private List<RemoteRunspace> CreateRunspacesForSSHHostParameterSet()
{
// Resolve all the machine names
String[] resolvedComputerNames;

ResolveComputerNames(HostName, out resolvedComputerNames);
ValidateComputerName(resolvedComputerNames);

var remoteRunspaces = new List<RemoteRunspace>();
int index = 0;
foreach (var computerName in resolvedComputerNames)
{
ParseSshHostName(computerName, out string host, out string userName, out int port);

var sshConnectionInfo = new SSHConnectionInfo(
this.UserName,
computerName,
userName,
host,
this.KeyFilePath,
this.Port);
port);
var typeTable = TypeTable.LoadDefaultTypeFiles();
string rsName = GetRunspaceName(index, out int rsIdUnused);
index++;
Expand Down
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