Unit Shell
From Ultibo.org
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Contents
Description
Ultibo Generic Shell unit
To be documented
Constants
Shell specific constants
SHELL_* SHELL_LINE_END = Chr(13) + Chr(10); {CR LF}
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SHELL_DEFAULT_BANNER = 'Ultibo Core (Release: ' + ULTIBO_RELEASE_NAME + ' Version: ' + ULTIBO_RELEASE_VERSION + ' Date: ' + ULTIBO_RELEASE_DATE + ')';
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SHELL_DEFAULT_PROMPT = '>';
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SHELL_DEFAULT_ERROR = 'Huh?';
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Shell flag constants
SHELL_FLAG_* SHELL_FLAG_NONE = $00000000;
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SHELL_FLAG_CLEAR = $00000001;
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SHELL_FLAG_SIZE = $00000002;
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SHELL_FLAG_CURSOR = $00000004;
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SHELL_FLAG_COLORS = $00000008;
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SHELL_FLAG_COORDINATES = $00000010;
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Shell session flag constants
SHELL_SESSION_FLAG_* SHELL_SESSION_FLAG_NONE = $00000000;
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Shell command flag constants
SHELL_COMMAND_FLAG_* SHELL_COMMAND_FLAG_NONE = $00000000;
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SHELL_COMMAND_FLAG_HIDDEN = $00000001;
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Hidden command, do not show in HELP or INFO |
SHELL_COMMAND_FLAG_HELP = $00000002;
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Command has HELP available |
SHELL_COMMAND_FLAG_INFO = $00000004;
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Command has INFO available |
SHELL_COMMAND_FLAG_DEFAULT = $00000008;
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Default command, pass unknown commands to this before showing error |
SHELL_COMMAND_FLAG_EXTENDED = $00000008;
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Extended command, pass command name to command for extended handling |
Shell alias flag constants
SHELL_ALIAS_FLAG_* SHELL_ALIAS_FLAG_NONE = $00000000;
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SHELL_ALIAS_FLAG_HIDDEN = $00000001;
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Hidden alias, do not show in HELP or INFO |
Shell command constants
SHELL_COMMAND_* SHELL_COMMAND_HELP = 'HELP';
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SHELL_COMMAND_INFO = 'INFO';
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SHELL_COMMAND_VER = 'VER';
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SHELL_COMMAND_TIME = 'TIME';
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SHELL_COMMAND_CLS = 'CLS';
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SHELL_COMMAND_RESTART = 'RESTART';
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SHELL_COMMAND_SHUTDOWN = 'SHUTDOWN';
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SHELL_COMMAND_CPU = 'CPU';
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SHELL_COMMAND_UPTIME = 'UPTIME';
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SHELL_COMMAND_WORKER = 'WORKER';
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SHELL_COMMAND_THREAD = 'THREAD';
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SHELL_COMMAND_MEMORY = 'MEMORY';
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SHELL_COMMAND_DEVICE = 'DEVICE';
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Shell alias constants
SHELL_ALIAS_* SHELL_ALIAS_HELP = '?';
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SHELL_ALIAS_VERSION = 'VERSION';
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SHELL_ALIAS_CLEAR = 'CLEAR';
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Shell logging constants
SHELL_LOG_* SHELL_LOG_LEVEL_DEBUG = LOG_LEVEL_DEBUG;
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Shell debugging messages |
SHELL_LOG_LEVEL_INFO = LOG_LEVEL_INFO;
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Shell informational messages |
SHELL_LOG_LEVEL_ERROR = LOG_LEVEL_ERROR;
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Shell error messages |
SHELL_LOG_LEVEL_NONE = LOG_LEVEL_NONE;
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No Shell messages |
Type definitions
None defined
Class definitions
Shell manager
TShellManager = class(TObject)
public
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constructor Create;
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destructor Destroy; override;
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private
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FLock:TCriticalSectionHandle;
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FShells:TLinkedList;
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FCommands:TLinkedList;
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protected
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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public
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function GetShell(APrevious:TShell; ALock,AUnlock:Boolean):TShell;
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function FindShell(const AName:String):TShell;
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function RegisterShell(AShell:TShell):Boolean;
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function DeregisterShell(AShell:TShell):Boolean;
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function GetCommand(APrevious:TShellCommand; ALock,AUnlock:Boolean):TShellCommand;
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function FindCommand(const AName:String):TShellCommand;
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function DefaultCommand:TShellCommand;
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function RegisterCommand(ACommand:TShellCommand):Boolean;
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function DeregisterCommand(ACommand:TShellCommand):Boolean;
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Shell
TShell = class(TListObject)
public
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constructor Create;
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destructor Destroy; override;
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private
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FManager:TShellManager;
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FAuthenticator:TAuthenticator;
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FLock:TCriticalSectionHandle;
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FSessions:TLinkedList;
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FCommands:TLinkedList;
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FBanner:String;
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FPrompt:String;
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FError:String;
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FName:String;
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FHash:LongWord;
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FFlags:LongWord;
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procedure SetAuthenticator(AAuthenticator:TAuthenticator);
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function GetBanner:String;
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procedure SetBanner(const ABanner:String);
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function GetPrompt:String;
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procedure SetPrompt(const APrompt:String);
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function GetError:String;
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procedure SetError(const AError:String);
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function GetName:String;
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procedure SetName(const AName:String);
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procedure SetFlags(AFlags:LongWord);
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protected
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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public
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property Manager:TShellManager read FManager;
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property Authenticator:TAuthenticator read FAuthenticator write SetAuthenticator;
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property Banner:String read GetBanner write SetBanner;
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property Prompt:String read GetPrompt write SetPrompt;
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property Error:String read GetError write SetError;
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property Name:String read GetName write SetName;
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property Hash:LongWord read FHash;
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property Flags:LongWord read FFlags write SetFlags;
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function DoClear(ASession:TShellSession):Boolean; virtual;
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function DoBanner(ASession:TShellSession):Boolean; virtual;
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function DoPrompt(ASession:TShellSession):Boolean; virtual;
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function DoError(ASession:TShellSession):Boolean; virtual;
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function DoInput(ASession:TShellSession; var AInput:String):Boolean; virtual;
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function DoOutput(ASession:TShellSession; const AOutput:String):Boolean; virtual;
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function DoOutputEx(ASession:TShellSession; const AOutput:String; AReturn:Boolean):Boolean; virtual;
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function DoGetSize(ASession:TShellSession; var ARows,ACols:LongWord):Boolean; virtual;
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function DoSetSize(ASession:TShellSession; ARows,ACols:LongWord):Boolean; virtual;
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function DoGetCursor(ASession:TShellSession; var ARow,ACol:LongWord):Boolean; virtual;
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function DoSetCursor(ASession:TShellSession; ARow,ACol:LongWord):Boolean; virtual;
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function DoGetColors(ASession:TShellSession; var AForecolor,ABackcolor:LongWord):Boolean; virtual;
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function DoSetColors(ASession:TShellSession; AForecolor,ABackcolor:LongWord):Boolean; virtual;
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function DoGetCoordinates(ASession:TShellSession; var ARow,ACol:LongWord):Boolean; virtual;
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function DoSetCoordinates(ASession:TShellSession; ARow,ACol:LongWord):Boolean; virtual;
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function GetSession(APrevious:TShellSession; ALock,AUnlock:Boolean):TShellSession;
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function FindSession(AIdentifier:LongWord):TShellSession;
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function CreateSession(AIdentifier:LongWord):TShellSession;
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function DestroySession(ASession:TShellSession):Boolean;
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function RegisterSession(ASession:TShellSession):Boolean;
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function DeregisterSession(ASession:TShellSession):Boolean;
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function GetCommand(APrevious:TShellCommand; ALock,AUnlock:Boolean):TShellCommand;
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function FindCommand(const AName:String):TShellCommand;
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function DefaultCommand:TShellCommand;
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function RegisterCommand(ACommand:TShellCommand):Boolean;
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function DeregisterCommand(ACommand:TShellCommand):Boolean;
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function MatchCommand(const ACommand:String; var AContinue:Boolean):TShellCommand; virtual;
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function ProcessCommand(ASession:TShellSession; const ACommand:String):Boolean; virtual;
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function CommandName(const ACommand:String):String;
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function CommandSplit(const ACommand:String):TStrings;
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function CommandParse(const ACommand:String; var AName:String; var AParameters:TStrings):Boolean;
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function CommandIndex(AIndex:Integer; const ACommand:String):String;
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function ParameterIndex(AIndex:Integer; AParameters:TStrings):String;
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function ParameterValue(const AParameter:String; AParameters:TStrings):String;
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function ParameterExists(const AParameter:String; AParameters:TStrings):Boolean;
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function ParameterValueEx(const AParameter:String; AParameters:TStrings; APlus,AMinus:Boolean):String;
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function ParameterExistsEx(const AParameter:String; AParameters:TStrings; APlus,AMinus:Boolean):Boolean;
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function AddOutput(var AOutput:String; ACol:LongWord; const AValue:String):Boolean;
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Shell session
TShellSession = class(TListObject)
public
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constructor Create(AShell:TShell; AIdentifier:LongWord);
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destructor Destroy; override;
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private
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FShell:TShell;
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FLock:TCriticalSectionHandle;
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FIdentifier:LongWord;
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Unique identifier for this session |
FFlags:LongWord;
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FPrompt:String;
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Current prompt for this session |
FData:Pointer;
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Shell private data for this session |
procedure SetFlags(AFlags:LongWord);
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procedure SetData(AData:Pointer);
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function GetPrompt:String;
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procedure SetPrompt(const APrompt:String);
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protected
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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public
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property Shell:TShell read FShell;
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property Identifier:LongWord read FIdentifier;
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property Flags:LongWord read FFlags write SetFlags;
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property Prompt:String read GetPrompt write SetPrompt;
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property Data:Pointer read FData write SetData;
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Shell command
TShellCommand = class(TListObject)
public
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constructor Create;
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destructor Destroy; override;
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private
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FManager:TShellManager;
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FLock:TCriticalSectionHandle;
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FAliases:TLinkedList;
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FName:String;
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FHash:LongWord;
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FFlags:LongWord;
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function GetName:String;
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procedure SetName(const AName:String);
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procedure SetFlags(AFlags:LongWord);
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protected
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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public
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property Manager:TShellManager read FManager;
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property Name:String read GetName write SetName;
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property Hash:LongWord read FHash;
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property Flags:LongWord read FFlags write SetFlags;
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; virtual;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; virtual;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; virtual;
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function DoDefault(AShell:TShell; ASession:TShellSession; const AName:String; AParameters:TStrings):Boolean; virtual;
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function DoExtended(AShell:TShell; ASession:TShellSession; const AName:String; AParameters:TStrings):Boolean; virtual;
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function GetAlias(APrevious:TShellAlias; ALock,AUnlock:Boolean):TShellAlias;
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function FindAlias(const AName:String):TShellAlias;
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function RegisterAlias(AAlias:TShellAlias):Boolean;
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function DeregisterAlias(AAlias:TShellAlias):Boolean;
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Shell alias
TShellAlias = class(TListObject)
public
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constructor Create;
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destructor Destroy; override;
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private
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FLock:TCriticalSectionHandle;
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FName:String;
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FHash:LongWord;
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FFlags:LongWord;
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function GetName:String;
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procedure SetName(const AName:String);
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procedure SetFlags(AFlags:LongWord);
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protected
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function AcquireLock:Boolean;
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function ReleaseLock:Boolean;
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public
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property Name:String read GetName write SetName;
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property Hash:LongWord read FHash;
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property Flags:LongWord read FFlags write SetFlags;
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Shell command help
TShellCommandHelp = class(TShellCommand)
public
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constructor Create;
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destructor Destroy; override;
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private
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public
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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Shell command information
TShellCommandInfo = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command version
TShellCommandVer = class(TShellCommand)
public
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constructor Create;
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destructor Destroy; override;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command time
TShellCommandTime = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command clear
TShellCommandClear = class(TShellCommand)
public
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constructor Create;
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destructor Destroy; override;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command restart
TShellCommandRestart = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command shutdown
TShellCommandShutdown = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command uptime
TShellCommandUptime = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command threads
TShellCommandThreads = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command memory
TShellCommandMemory = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Shell command devices
TShellCommandDevices = class(TShellCommand)
public
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constructor Create;
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private
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public
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function DoHelp(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoInfo(AShell:TShell; ASession:TShellSession):Boolean; override;
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function DoCommand(AShell:TShell; ASession:TShellSession; AParameters:TStrings):Boolean; override;
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Public variables
Shell logging
SHELL_DEFAULT_LOG_LEVEL:LongWord = SHELL_LOG_LEVEL_DEBUG;
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Minimum level for Shell messages. Only messages with level greater than or equal to this will be printed. |
SHELL_LOG_ENABLED:Boolean;
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Function declarations
Initialization functions
procedure ShellInit;
Description: To be documented
| Note | None documented |
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Shell functions
function ShellGetShell(APrevious:TShell; ALock,AUnlock:Boolean):TShell;
Description: To be documented
| Note | None documented |
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function ShellFindShell(const AName:String):TShell;
Description: To be documented
| Note | None documented |
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function ShellRegisterShell(AShell:TShell):Boolean;
Description: To be documented
| Note | None documented |
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function ShellDeregisterShell(AShell:TShell):Boolean;
Description: To be documented
| Note | None documented |
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function ShellGetCommand(APrevious:TShellCommand; ALock,AUnlock:Boolean):TShellCommand;
Description: To be documented
| Note | None documented |
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function ShellFindCommand(const AName:String):TShellCommand;
Description: To be documented
| Note | None documented |
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function ShellRegisterCommand(ACommand:TShellCommand):Boolean;
Description: To be documented
| Note | None documented |
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function ShellDeregisterCommand(ACommand:TShellCommand):Boolean;
Description: To be documented
| Note | None documented |
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Shell helper functions
procedure ShellLog(Level:LongWord; const AText:String);
Description: To be documented
| Note | None documented |
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procedure ShellLogInfo(const AText:String);
Description: To be documented
| Note | None documented |
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procedure ShellLogError(const AText:String);
Description: To be documented
| Note | None documented |
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procedure ShellLogDebug(const AText:String);
Description: To be documented
| Note | None documented |
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