/// <summary>Generates the array of QueueAclsInfo object.</summary>
/// <remarks>
/// Generates the array of QueueAclsInfo object.
/// <p>
/// The array consists of only those queues for which user has acls.
/// </remarks>
/// <returns>QueueAclsInfo[]</returns>
/// <exception cref="System.IO.IOException"/>
internal virtual QueueAclsInfo[] GetQueueAcls(UserGroupInformation ugi)
{
lock (this)
{
//List of all QueueAclsInfo objects , this list is returned
AList <QueueAclsInfo> queueAclsInfolist = new AList <QueueAclsInfo>();
QueueACL[] qAcls = QueueACL.Values();
foreach (string queueName in leafQueues.Keys)
{
QueueAclsInfo queueAclsInfo = null;
AList <string> operationsAllowed = null;
foreach (QueueACL qAcl in qAcls)
{
if (HasAccess(queueName, qAcl, ugi))
{
if (operationsAllowed == null)
{
operationsAllowed = new AList <string>();
}
operationsAllowed.AddItem(qAcl.GetAclName());
}
}
if (operationsAllowed != null)
{
//There is atleast 1 operation supported for queue <queueName>
//, hence initialize queueAclsInfo
queueAclsInfo = new QueueAclsInfo(queueName, Sharpen.Collections.ToArray(operationsAllowed
, new string[operationsAllowed.Count]));
queueAclsInfolist.AddItem(queueAclsInfo);
}
}
return(Sharpen.Collections.ToArray(queueAclsInfolist, new QueueAclsInfo[queueAclsInfolist
.Count]));
}
}
/// <summary>
/// Return true if the given user is part of the ACL for the given
/// <see cref="QueueACL"/>
/// name for the given queue.
/// <p>
/// An operation is allowed if all users are provided access for this
/// operation, or if either the user or any of the groups specified is
/// provided access.
/// </summary>
/// <param name="queueName">Queue on which the operation needs to be performed.</param>
/// <param name="qACL">The queue ACL name to be checked</param>
/// <param name="ugi">The user and groups who wish to perform the operation.</param>
/// <returns>true if the operation is allowed, false otherwise.</returns>
public virtual bool HasAccess(string queueName, QueueACL qACL, UserGroupInformation
ugi)
{
lock (this)
{
Queue q = leafQueues[queueName];
if (q == null)
{
Log.Info("Queue " + queueName + " is not present");
return(false);
}
if (q.GetChildren() != null && !q.GetChildren().IsEmpty())
{
Log.Info("Cannot submit job to parent queue " + q.GetName());
return(false);
}
if (!AreAclsEnabled())
{
return(true);
}
if (Log.IsDebugEnabled())
{
Log.Debug("Checking access for the acl " + ToFullPropertyName(queueName, qACL.GetAclName
()) + " for user " + ugi.GetShortUserName());
}
AccessControlList acl = q.GetAcls()[ToFullPropertyName(queueName, qACL.GetAclName
())];
if (acl == null)
{
return(false);
}
// Check if user is part of the ACL
return(acl.IsUserAllowed(ugi));
}
}
/// <summary>Parse ACLs for the queue from the configuration.</summary>
private IDictionary <string, AccessControlList> GetQueueAcls(string name, Configuration
conf)
{
Dictionary <string, AccessControlList> map = new Dictionary <string, AccessControlList
>();
foreach (QueueACL qAcl in QueueACL.Values())
{
string aclKey = QueueManager.ToFullPropertyName(name, qAcl.GetAclName());
map[aclKey] = new AccessControlList(conf.Get(aclKey, "*"));
}
return(map);
}
/// <summary>
/// Check if queue properties are configured in the passed in
/// configuration.
/// </summary>
/// <remarks>
/// Check if queue properties are configured in the passed in
/// configuration. If yes, print out deprecation warning messages.
/// </remarks>
private bool DeprecatedConf(Configuration conf)
{
string[] queues = null;
string queueNameValues = GetQueueNames(conf);
if (queueNameValues == null)
{
return(false);
}
else
{
Log.Warn("Configuring \"" + MapredQueueNamesKey + "\" in mapred-site.xml or " + "hadoop-site.xml is deprecated and will overshadow "
+ QueueConfFileName + ". Remove this property and configure " + "queue hierarchy in "
+ QueueConfFileName);
// store queues so we can check if ACLs are also configured
// in the deprecated files.
queues = conf.GetStrings(MapredQueueNamesKey);
}
// check if acls are defined
if (queues != null)
{
foreach (string queue in queues)
{
foreach (QueueACL qAcl in QueueACL.Values())
{
string key = QueueManager.ToFullPropertyName(queue, qAcl.GetAclName());
string aclString = conf.Get(key);
if (aclString != null)
{
Log.Warn("Configuring queue ACLs in mapred-site.xml or " + "hadoop-site.xml is deprecated. Configure queue ACLs in "
+ QueueConfFileName);
// even if one string is configured, it is enough for printing
// the warning. so we can return from here.
return(true);
}
}
}
}
return(true);
}
internal Operation(QueueACL qACL, JobACL jobACL)
{
this.qACLNeeded = qACL;
this.jobACLNeeded = jobACL;
}