Remoto - VFS: VFS_passwd Class Reference
Remoto - VFS

The VFS_passwd authenticator uses a passwd file to store username, hashed password, uidnumber, a real name, and group membership. More...

#include <VFS_passwd.h>

Inheritance diagram for VFS_passwd:
VFS_auth VFS_node

Public Member Functions

Q_INVOKABLE VFS_passwd (QString file)
 
virtual ~VFS_passwd ()
 
virtual QString reportDetails ()
 Additional details for a generated report. More...
 
- Public Member Functions inherited from VFS_auth
 VFS_auth ()
 
virtual ~VFS_auth ()
 
virtual VFS_nodefind (VFS_request *r)
 Find a node using a VFS_request. More...
 
virtual bool isContainer ()
 A VFS_auth node cannot contain children. More...
 
- Public Member Functions inherited from VFS_node
Q_INVOKABLE VFS_node ()
 The VFS_node constructor will add its instance to the VFS_node::__allNodes global node registry, observing thread safety rules. More...
 
virtual ~VFS_node ()
 VFS_node destructor. More...
 
virtual VFS_nodeappend (QString name, VFS_node *node, bool containerCheck=true, QString user="server")
 Append a VFS_node as a child of this node. More...
 
QString className ()
 Return the class name of a node. More...
 
virtual VFS_requestcreateRequest (VFS_request::requestType type, QString path, QString user="unknown", QJsonDocument data=QJsonDocument(), QJsonObject metadata=QJsonObject(), bool dontDelete=false)
 Create a new VFS_request with this object as _origin. More...
 
VFS_nodefind (QString path)
 Find a node by string path. More...
 
VFS_nodefindChildWithName (QString name)
 Check if a child with a given name exists. More...
 
virtual VFS_nodemount ()
 Mount this node. More...
 
QString uniqueChildName (QString name)
 Generate a unique child name. More...
 
virtual VFS_nodeunmount ()
 Unmount this node. More...
 
virtual bool validChildName (QString name)
 Check if a node name is valid. More...
 

Protected Member Functions

virtual void ls (VFS_request *r)
 List the users available for this auth method. More...
 
virtual void read (VFS_request *r)
 Perform an authentication request by read()ing from this node. More...
 
- Protected Member Functions inherited from VFS_auth
virtual QByteArray icon ()
 Return the users icon from VFS_icons. More...
 
- Protected Member Functions inherited from VFS_node
virtual void aclDefaults (VFS_request *r)
 Return default values and features associated wth this node. More...
 
void addACLDefault (QJsonObject &acl, bool value, QString description="")
 Add a default value to the acl object. More...
 
void addACLFeature (QJsonObject &acl, QString feature, bool value, QString description="")
 Add a feature to the acl object. More...
 
void addACLFeatureGroup (QJsonObject &acl, QString feature, QString group, bool value)
 Add a feature group to the acl object. More...
 
void addACLFeatureUser (QJsonObject &acl, QString feature, QString user, bool value)
 Add a feature user to the acl object. More...
 
void addACLGroup (QJsonObject &acl, QString group, bool value)
 Add a group to the acl object. More...
 
void addACLUser (QJsonObject &acl, QString user, bool value)
 Add a user to the acl object. More...
 
virtual void issueRequest (VFS_node *target, VFS_request *t)
 Issue a VFS_request to its target. More...
 
virtual void issueRequest (VFS_request *t)
 A convenience function. More...
 
virtual void issueResponse (VFS_request *t)
 Once a request has been completed, issue a response. More...
 
virtual void metadata (VFS_request *r)
 Fetch the metadata of this node. More...
 
virtual void releaseLock (VFS_request *r)
 Release a lock on this node. More...
 
virtual void report (VFS_request *r)
 Report debugging information about the current state of this node. More...
 
virtual void requestLock (VFS_request *r)
 Request a lock on this node. More...
 
virtual void rm (VFS_request *r)
 Remove a child entry from a node, or the node itself. More...
 
virtual void submit (VFS_request *r)
 Submit a diff to a node. More...
 
virtual void subscribe (VFS_request *r)
 Add an entry to this node's _subscription list. More...
 
virtual void unsubscribe (VFS_request *r)
 Remove an entry from this node's _subscription list. More...
 
virtual void unsubscribePath (QString path)
 Unsubscribe all references to a subpath. More...
 
virtual void write (VFS_request *r)
 Write data to this node. More...
 

Private Attributes

QString _passwordFile
 The filesystem path to the passwd file. More...
 

Additional Inherited Members

- Public Slots inherited from VFS_auth
virtual void executeRequest (VFS_request *t)
 Execute a VFS_request. More...
 
- Public Slots inherited from VFS_node
virtual void applyDiff (VFS_request *r)
 Apply a diff received via subscription. More...
 
virtual void executeRequest (VFS_request *t)
 Based on the VFS_request::requestType, execute the function associated with an operation. More...
 
void notifySubscribers (VFS_node *origin, VFS_request *t)
 Propagate a diff to subscribers. More...
 
virtual void receiveResponse (VFS_request *t)
 Once a VFS_request has been completed, a response will be issued back to its _origin. More...
 
void remove (bool andDelete)
 Remove a child node. More...
 
virtual void remove (VFS_node *node=nullptr, QString *name=nullptr, QString user="server")
 Remove a child node from this node. More...
 
virtual void subtreeRequest (VFS_request *t)
 find() the target of a VFS_request, and execute the request More...
 
virtual void unsubscribeAll (VFS_node *n)
 Remove all references to a subscriber from this node. More...
 
- Signals inherited from VFS_node
void diff (VFS_node *origin, VFS_request *t)
 Emit a diff, which will trigger notifySubscribers() for a mounted node. More...
 
void finished (bool andDelete=false)
 Emitted if a thread fails to create its node, or a node is rm()'d, or any other reason a node has completed its lifecycle. It is deleted if andDelete==true. More...
 
void mounted ()
 Emitted when a node is mount()ed. More...
 
void unmounted (VFS_node *self)
 Emitted when a node is unmount()ed. More...
 
- Static Public Member Functions inherited from VFS_node
static bool __isNode (VFS_node *)
 Check to see if a node is in the global registry. More...
 
static QString code (QString nodename, QString libname, QString &error)
 Fetch code or any other resource from a node. More...
 
- Protected Attributes inherited from VFS_node
VFS_children _children
 This node's children. More...
 
QMutex _lock
 A recursive mutex that is local to this node. More...
 
VFS_subscriptionType _subscribers
 This node's subscribers. These subscribers will receive diff notifications. More...
 

Detailed Description

The VFS_passwd authenticator uses a passwd file to store username, hashed password, uidnumber, a real name, and group membership.

The format of the passwd file is:

username1 password1hash uidnumber "Real Name" group1,group2
username2 password2hash uidnumber "Real Name 2" group2,group3,group4

Each line is separated by a newline and contains usernames who will be authenticated using a password.

Passwords are stored using an MD5 hash converted to a hexidecimal value. The password hash field is required.

If the uidnumber is not present or does not parse as an integer, it will default to 0.

The real name field should be surrounded by quotes and is optional. If the real name is missing the username will be used.

The group field is a comma separated list and is optional. If missing, the user will not belong to any groups.

Spaces should only appear between fields or within quotes for the real name.

Definition at line 6 of file VFS_passwd.h.

Constructor & Destructor Documentation

◆ VFS_passwd()

VFS_passwd::VFS_passwd ( QString  passwdFile)
explicit
Parameters
passwdFilePath to the passwd file

Auth requests will use the hashed password values stored in the passwd file to determine authentication.

Definition at line 37 of file VFS_passwd.cpp.

◆ ~VFS_passwd()

VFS_passwd::~VFS_passwd ( )
virtual

Definition at line 43 of file VFS_passwd.cpp.

Member Function Documentation

◆ ls()

void VFS_passwd::ls ( VFS_request r)
protectedvirtual

List the users available for this auth method.

Parameters
rThe VFS_request object

Reimplemented from VFS_node.

Definition at line 119 of file VFS_passwd.cpp.

◆ read()

void VFS_passwd::read ( VFS_request r)
protectedvirtual

Perform an authentication request by read()ing from this node.

Parameters
rThe VFS_request object

When a user requests authentication against this node, the passwd file is opened and each line is sequentially read and tested against provided credentials.

Credentials must be supplied in the VFS_request::_data object:

d["username"] = "username";
d["password"] = "password";

The password value is hashed and compared to the lines in the passwd file. If no matching lines are found, r->_success = false will be set.

Reimplemented from VFS_node.

Definition at line 63 of file VFS_passwd.cpp.

◆ reportDetails()

QString VFS_passwd::reportDetails ( )
virtual

Additional details for a generated report.

Returns
A string containing the additional details.

This is useful in subclasses for providing class-specific information of any kind. For instance, VFS_cron::reportDetails() will list all active events.

See also
VFS_httpd_browser

Reimplemented from VFS_node.

Definition at line 183 of file VFS_passwd.cpp.

Member Data Documentation

◆ _passwordFile

QString VFS_passwd::_passwordFile
private

The filesystem path to the passwd file.

Definition at line 21 of file VFS_passwd.h.


The documentation for this class was generated from the following files: