411 REFERENCE · Wikibooks
Oberon/ETH Oberon/2.3.7/FTPDocs.Mod
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
(* ETH Oberon, Copyright 1990-2003 Computer Systems Institute, ETH Zurich, CH-8092 Zurich.
Refer to the license.txt file provided with this distribution. *)
MODULE FTPDocs; (** portable *) (* ejz, 05.01.03 20:13:25, some tips by bh & pm *)
IMPORT Files, Objects, Fonts, Display, NetSystem, Strings, HyperDocs, NetTools, Input, Texts, Display3, Oberon,
Links, Gadgets, Attributes, TextGadgets, Documents, TextDocs, Desktops, Streams, MIME;
(** This module implements an API-interface and a interactive interface to FTP (RFC 959).
The FTPDocs-modul supports ftp urls. The following line should be added to the LinkSchemes section of the Registry:
ftp = FTPDocs.NewLinkScheme
And the following line to the Documents section:
ftp = FTPDocs.NewDoc
To ensure that anonymous ftp works correctly your e-mail address should be defined in the NetSystem section of
the Registry. e.g.: EMail = "me@home"
To access FTP within a firewall, add the proxy to the NetSystem section of the Registry:
FTPProxy = host [ ":" port ] . *)
CONST
DefConPort* = 21;
FixedFont = "Courier10.Scn.Fnt";
(** res codes *)
Done* = NetTools.Done;
NotReady* = 1;
NotConnected* = 2;
WrongUser* = 3;
WrongPassword* = 4;
TimedOut* = 5;
LocFileNotFound* = 6;
Interrupted* = 7;
Disconnected* = 8;
Failed* = NetTools.Failed;
(* systems *)
Unknown = -1;
UNIX = 0;
VMS = 1;
TempFile = "Temp.FTP";
Menu = "HyperDocs.Back[Back] FTPDocs.DeleteDocFile[Del] FTPDocs.GetDocFile[Get] FTPDocs.PutDocFile[Put] TextDocs.Search[Search]";
SysMenu = "HyperDocs.Back[Back] FTPDocs.GetDocFile[Get] FTPDocs.PutDocFile[Put]";
MinDataPort = 1100;
MaxDataPort = 1500;
TYPE
(** The connection to an ftp server is controlled by a session handle. *)
Session* = POINTER TO SessionDesc;
SessionDesc* = RECORD (NetTools.SessionDesc)
dataC: NetSystem.Connection;
log: Texts.Text;
curDir: ARRAY NetTools.PathStrLen OF CHAR;
system, dataPort: INTEGER;
dataIP: NetSystem.IPAdr;
portIPAddress: ARRAY 64 OF CHAR;
usr, passw, host: ARRAY NetTools.ServerStrLen OF CHAR;
port: INTEGER;
ack, bin: BOOLEAN
END;
EnumProc* = PROCEDURE (entry: ARRAY OF CHAR);
Frame = POINTER TO FrameDesc;
FrameDesc = RECORD (TextGadgets.FrameDesc)
S: Session
END;
VAR
system: INTEGER;
W, dirW: Texts.Writer;
line, link: ARRAY NetTools.MaxLine OF CHAR;
cacheS, curS: Session;
curF: Frame;
message: BOOLEAN;
proxyHost: ARRAY NetTools.ServerStrLen OF CHAR;
proxyPort, dataPort: INTEGER;
proxy: BOOLEAN;
PROCEDURE ReadResponse(S: Session; VAR sline: ARRAY OF CHAR);
VAR
time, i, j, cpos: LONGINT;
code: ARRAY 8 OF CHAR;
line: ARRAY NetTools.MaxLine OF CHAR;
BEGIN
IF ~NetTools.Connected(S.C, NetSystem.in) THEN
COPY("Connection closed by server.", sline);
COPY(sline, S.reply);
S.status := 0; S.res := Disconnected;
RETURN
END;
time := NetSystem.Available(S.C);
NetSystem.ReadString(S.C, line);
IF S.log # NIL THEN
Texts.WriteString(W, line);
Texts.WriteLn(W); Texts.Append(S.log, W.buf)
END;
Strings.StrToInt(line, time); S.status := SHORT(time);
Strings.IntToStr(time, code);
cpos := 0;
WHILE code[cpos] # 0X DO
INC(cpos)
END;
i := cpos+1; j := 0;
WHILE line[i] # 0X DO
sline[j] := line[i];
INC(j); INC(i)
END;
sline[j] := 0X;
time := Input.Time();
IF line[cpos] = "-" THEN
LOOP
IF NetSystem.Available(S.C) > 0 THEN
line[cpos] := 0X;
NetSystem.ReadString(S.C, line);
IF S.log # NIL THEN
Texts.WriteString(W, line);
Texts.WriteLn(W); Texts.Append(S.log, W.buf)
END;
IF line[cpos] # "-" THEN
line[cpos] := 0X;
IF line = code THEN
EXIT
END
END;
time := Input.Time()
ELSIF (Input.Time()-time) >= NetTools.TimeOut THEN
S.res := TimedOut;
RETURN
ELSIF NetTools.UserBreak() THEN
S.res := Interrupted;
RETURN
END
END
END;
S.ack := TRUE
END ReadResponse;
PROCEDURE SendLine(C: NetSystem.Connection; VAR str: ARRAY OF CHAR);
BEGIN
NetTools.SendString(C, str);
NetSystem.WriteBytes(C, 0, 2, Strings.CRLF)
END SendLine;
PROCEDURE SendCmd(S: Session; str: ARRAY OF CHAR);
BEGIN
IF ~S.ack THEN
ReadResponse(S, line)
ELSE
S.ack := FALSE
END;
SendLine(S.C, str)
END SendCmd;
(** Close connection for session S.
res: allways = Done *)
PROCEDURE Close*(S: Session);
BEGIN
S.ack := TRUE;
SendCmd(S, "QUIT"); ReadResponse(S, S.reply);
NetTools.Disconnect(S.dataC); NetTools.Disconnect(S.C);
S.res := Done
END Close;
PROCEDURE Close2(S: Session);
BEGIN
S.ack := TRUE;
SendCmd(S, "QUIT");
NetTools.Disconnect(S.dataC); NetTools.Disconnect(S.C)
END Close2;
PROCEDURE QuerySystem(S: Session);
VAR pos: LONGINT;
BEGIN
S.system := UNIX;
SendCmd(S, "SYST"); ReadResponse(S, line);
IF (S.status >= 200) & (S.status < 300) THEN
pos := 0;
Strings.Search("VMS", line, pos);
IF pos >= 0 THEN
S.system := VMS
END
END
END QuerySystem;
PROCEDURE GetLogin(VAR host, usr, passw: ARRAY OF CHAR);
BEGIN
IF (usr = "ftp") OR (usr = "anonymous") OR (usr = "") THEN
IF ~NetTools.QueryString("EMail", passw) OR (passw[0] = "<") THEN
COPY("anonymous@host.nowhere", passw)
END;
IF usr = "" THEN
COPY("anonymous", usr)
END
ELSIF passw = "" THEN
NetSystem.GetPassword("ftp", host, usr, passw)
END
END GetLogin;
(** Open a new ftp session S to server using USER=user and PASS=passwd.
If user is either ftp or anonymous, passwd defaults to the e-mail address set in the
Registry (NetSystem.EMail).
port gives the Telnet-port of the FTP server, most FTP servers use FTPDocs.DefConPort.
If log # NIL all responses from the server will be appended to log. NetSystem.hostIP
must be set correctly.
res:
Done: all ok
WrongPassword: the password given is incorrect
WrongUser: the given user is not allowed to use this server
NotReady: the server is busy, retry later
NotConnected: server not found
Failed: NetSystem.hostIP not set *)
PROCEDURE Open*(server, user, passwd: ARRAY OF CHAR; port: INTEGER; log: Texts.Text; VAR S: Session);
BEGIN
NEW(S); S.dataC := NIL;
COPY(server, S.host); S.port := port; S.dataPort := -1;
COPY(user, S.usr); COPY(passwd, S.passw);
GetLogin(server, S.usr, S.passw);
IF NetSystem.hostIP = NetSystem.anyIP THEN
S.C := NIL;
S.reply := "invalid NetSystem.hostIP";
S.res := Failed;
RETURN
END;
S.system := Unknown;
S.reply := "connecting failed";
S.portIPAddress := "";
S.log := log;
S.ack := TRUE;
IF (S.usr = "") OR (S.passw = "") THEN
S.res := Failed;
S.reply := "no password or username specified";
RETURN
END;
IF NetTools.Connect(S.C, port, server, FALSE) THEN
ReadResponse(S, S.reply);
IF (S.status >= 200) & (S.status < 300) THEN
line := "USER "; Strings.Append(line, S.usr);
SendCmd(S, line); ReadResponse(S, line);
IF (S.status = 330) OR (S.status = 331) THEN
line := "PASS "; Strings.Append(line, S.passw);
SendCmd(S, line); ReadResponse(S, line);
IF (S.status = 230) OR (S.status= 330) THEN
S.res := Done
ELSE
S.res := WrongPassword; COPY(line, S.reply);
Close2(S)
END
ELSIF S.status # 230 THEN
S.res := WrongUser; COPY(line, S.reply);
Close2(S)
ELSE
S.res := Done
END;
IF S.res # Done THEN
NetSystem.DelPassword("ftp", S.usr, server)
END
ELSE
S.res := NotReady;
Close2(S)
END
ELSE
S.res := NotConnected
END;
IF S.res = Done THEN
SendCmd(S, "TYPE I"); S.bin := TRUE;
ReadResponse(S, line);
IF S.status # 200 THEN
(* should not happen *)
END;
QuerySystem(S);
S.res := Done
END
END Open;
(** Change the current directory.
res:
Done: all ok
Failed: directory not changed *)
PROCEDURE ChangeDir*(S: Session; newDir: ARRAY OF CHAR);
BEGIN
S.reply := "CWD ";
Strings.Append(S.reply, newDir);
SendCmd(S, S.reply);
ReadResponse(S, S.reply);
IF S.status = 250 THEN
S.res := Done
ELSE
S.res := Failed
END
END ChangeDir;
PROCEDURE SetDataPort(S: Session);
VAR str: ARRAY 4 OF CHAR; p0, p1: LONGINT; i, j, k: INTEGER; done: BOOLEAN;
BEGIN
SendCmd(S, "PASV"); ReadResponse(S, line);
IF (S.status >= 200) & (S.status < 300) THEN
S.res := Interrupted; i := 0;
WHILE (line[i] # 0X) & ~Strings.IsDigit(line[i]) DO INC(i) END;
j := 0; k := 0;
WHILE (line[i] # 0X) & (k < 4) DO
IF line[i] # "," THEN
S.portIPAddress[j] := line[i]
ELSE
S.portIPAddress[j] := "."; INC(k)
END;
INC(i); INC(j)
END;
IF (j <= 0) & (k < 4) THEN RETURN END;
S.portIPAddress[j-1] := 0X;
NetSystem.ToHost(S.portIPAddress, S.dataIP, done);
IF ~done THEN RETURN END;
WHILE (line[i] # 0X) & ((line[i] <= " ") OR (line[i] = ",")) DO INC(i) END;
Strings.StrToIntPos(line, p0, i);
WHILE (line[i] # 0X) & ((line[i] <= " ") OR (line[i] = ",")) DO INC(i) END;
Strings.StrToIntPos(line, p1, i);
S.dataPort := SHORT(256*p0+p1);
S.res := Done
ELSE
S.dataIP := NetSystem.anyIP;
S.dataPort := dataPort;
REPEAT
IF S.dataPort >= MaxDataPort THEN
S.dataPort := MinDataPort
END;
INC(S.dataPort);
(* not 100% safe *)
NetSystem.OpenConnection(S.dataC, S.dataPort, NetSystem.anyIP, NetSystem.anyport, S. res)
UNTIL (S.res = NetSystem.done) OR NetTools.UserBreak();
IF S.res = NetSystem.done THEN
dataPort := S.dataPort; S.res := Failed;
NetSystem.ToNum(NetSystem.hostIP, S.portIPAddress);
i := 0;
WHILE S.portIPAddress[i] # 0X DO
IF S.portIPAddress[i] = "." THEN
S.portIPAddress[i] := ","
END;
INC(i)
END;
Strings.AppendCh(S.portIPAddress, ",");
Strings.IntToStr(S.dataPort DIV 256, str);
Strings.Append(S.portIPAddress, str);
Strings.AppendCh(S.portIPAddress, ",");
Strings.IntToStr(S.dataPort MOD 256, str);
Strings.Append(S.portIPAddress, str);
line := "PORT "; Strings.Append(line, S.portIPAddress);
SendCmd(S, line)
ELSE
NetTools.Disconnect(S.dataC); S.dataC := NIL;
S.reply := "Interrupted"; S.res := Interrupted
END
END
END SetDataPort;
PROCEDURE WaitDataCon(S: Session): NetSystem.Connection;
VAR C1: NetSystem.Connection; time: LONGINT;
BEGIN
IF S.dataIP = NetSystem.anyIP THEN
time := Input.Time();
REPEAT
UNTIL NetSystem.Requested(S.dataC) OR ((Input.Time()-time) > NetTools.TimeOut) OR NetTools.UserBreak();
IF NetSystem.Requested(S.dataC) THEN
NetSystem.Accept(S.dataC, C1, S.res); NetTools.Disconnect(S.dataC);
IF S.res = NetSystem.done THEN
S.res := Done;
RETURN C1
ELSE
S.res := Failed
END
ELSIF (Input.Time()-time) > NetTools.TimeOut THEN
S.res := TimedOut
ELSE
S.res := Interrupted
END;
NetTools.Disconnect(S.dataC)
ELSE
NetSystem.OpenConnection(C1, NetSystem.anyport, S.dataIP, S.dataPort, S.res);
IF S.res = Done THEN RETURN C1 END
END;
RETURN NIL
END WaitDataCon;
(** Retrieve a list of the current directory and call enum for each entry in the list.
res:
Done: all ok
TimeOut: server did not answer in time
Failed: see S.reply(Line) *)
PROCEDURE EnumDir*(S: Session; enum: EnumProc);
VAR C: NetSystem.Connection; len: LONGINT;
BEGIN
S.reply := ""; SetDataPort(S); C := NIL;
IF S.res = Interrupted THEN RETURN END;
IF S.dataIP = NetSystem.anyIP THEN
ReadResponse(S, line)
ELSE
C := WaitDataCon(S);
IF S.res = Done THEN S.status := 200 END
END;
IF S.status = 200 THEN
IF S.system = VMS THEN
SendCmd(S, "NLST")
ELSE
SendCmd(S, "LIST")
END;
ReadResponse(S, S.reply);
IF (S.status = 150) OR (S.status = 250) THEN
IF S.dataIP = NetSystem.anyIP THEN C := WaitDataCon(S) END;
IF S.res = Done THEN
S.res := Done;
len := NetSystem.Available(C);
WHILE ((len > 0) OR NetTools.Connected(C, NetSystem.in)) & ~NetTools.UserBreak() DO
IF len > 0 THEN
NetSystem.ReadString(C, line);
enum(line)
END;
len := NetSystem.Available(C)
END
END;
NetTools.Disconnect(C); (* before ReadResponse *)
ReadResponse(S, S.reply)
ELSE
S.res := Failed
END
END;
IF C # NIL THEN NetTools.Disconnect(C) END;
IF S.dataC # NIL THEN NetTools.Disconnect(S.dataC) END
END EnumDir;
PROCEDURE ScanLen(VAR reply: ARRAY OF CHAR; VAR len: LONGINT);
VAR
i, d: INTEGER;
last: BOOLEAN;
BEGIN
last := FALSE; d := -1; i := 0;
WHILE reply[i] # 0X DO
IF Strings.IsDigit(reply[i]) THEN
IF ~last THEN
d := i; last := TRUE
END
ELSE
last := FALSE
END;
INC(i)
END;
IF d > 0 THEN
Strings.StrToIntPos(reply, len, d)
ELSE
len := 0
END
END ScanLen;
PROCEDURE GetF(S: Session; remName: ARRAY OF CHAR; VAR R: Files.Rider);
VAR C: NetSystem.Connection;
BEGIN
S.reply := ""; SetDataPort(S); C := NIL;
IF S.res = Interrupted THEN RETURN END;
IF S.dataIP = NetSystem.anyIP THEN
ReadResponse(S, line)
ELSE
C := WaitDataCon(S);
IF S.res = Done THEN S.status := 200 END
END;
IF S.status = 200 THEN
line := "RETR ";
Strings.Append(line, remName);
SendCmd(S, line);
ReadResponse(S, line);
COPY(line, S.reply);
IF (S.status = 150) OR (S.status = 250) THEN
IF S.dataIP = NetSystem.anyIP THEN C := WaitDataCon(S) END;
IF S.res = Done THEN
ScanLen(S.reply, NetTools.curLen); NetTools.curPos := 0;
NetTools.ReadData(C, R, MAX(LONGINT))
END;
NetTools.Disconnect(C); (* before ReadResponse *)
ReadResponse(S, S.reply);
IF S.res = Interrupted THEN ReadResponse(S, line) END
ELSE
S.res := Failed
END
END;
IF C # NIL THEN NetTools.Disconnect(C) END;
IF S.dataC # NIL THEN NetTools.Disconnect(S.dataC) END
END GetF;
(** Retrieve the file remName from the server and store it as local file locName.
res:
Done: all ok
TimeOut: server did not answer in time
Failed: file not found or no permission, see S.reply(Line) *)
PROCEDURE GetFile*(S: Session; remName, locName: ARRAY OF CHAR);
VAR
F: Files.File;
R: Files.Rider;
BEGIN
S.bin := TRUE;
F := Files.New(locName);
Files.Set(R, F, 0);
GetF(S, remName, R);
Files.Register(F)
END GetFile;
(** Retrieve the text file remName from the server and write it to writer W.
The text is converted from iso-8859-1 to the Oberon-code.
res:
Done: all ok
TimeOut: server did not answer in time
Failed: file not found or no permission, see S.reply(Line) *)
PROCEDURE GetText*(S: Session; remName: ARRAY OF CHAR; VAR W: Texts.Writer);
VAR C: NetSystem.Connection; in: Streams.Stream;
BEGIN
S.reply := ""; C := NIL;
SendCmd(S, "TYPE A"); S.bin := FALSE;
ReadResponse(S, line);
SetDataPort(S);
IF S.res = Interrupted THEN SendCmd(S, "TYPE I"); ReadResponse(S, line); RETURN END;
IF S.dataIP = NetSystem.anyIP THEN
ReadResponse(S, line)
ELSE
C := WaitDataCon(S);
IF S.res = Done THEN S.status := 200 END
END;
IF S.status = 200 THEN
line := "RETR ";
Strings.Append(line, remName);
SendCmd(S, line);
ReadResponse(S, line);
COPY(line, S.reply);
IF (S.status = 150) OR (S.status = 250) THEN
IF S.dataIP = NetSystem.anyIP THEN C := WaitDataCon(S) END;
IF S.res = Done THEN
ScanLen(S.reply, NetTools.curLen); NetTools.curPos := 0;
in := NetTools.OpenStream(C); MIME.textCont.len := MAX(LONGINT);
MIME.ReadText(in, W, MIME.textCont, FALSE)
END;
NetTools.Disconnect(C); (* before ReadResponse *)
ReadResponse(S, S.reply);
IF S.res = Interrupted THEN ReadResponse(S, line) END
ELSE
S.res := Failed
END
END;
IF C # NIL THEN NetTools.Disconnect(C) END;
IF S.dataC # NIL THEN NetTools.Disconnect(S.dataC) END;
SendCmd(S, "TYPE I");
ReadResponse(S, line)
END GetText;
(** Store the local file locName as remName on the server.
res:
Done: all ok
TimeOut: server did not answer in time
Failed: no permission or bad file name
LocFileNotFound: could not open the local file *)
PROCEDURE PutFile*(S: Session; remName, locName: ARRAY OF CHAR);
VAR C: NetSystem.Connection; F: Files.File; R: Files.Rider;
BEGIN
S.reply := ""; S.bin := TRUE; C := NIL;
F := Files.Old(locName);
IF F # NIL THEN
SetDataPort(S);
IF S.res = Interrupted THEN RETURN END;
IF S.dataIP = NetSystem.anyIP THEN
ReadResponse(S, line)
ELSE
C := WaitDataCon(S);
IF S.res = Done THEN S.status := 200 END
END;
IF S.status = 200 THEN
line := "STOR ";
Strings.Append(line, remName);
SendCmd(S, line);
ReadResponse(S, S.reply);
IF (S.status = 150) OR (S.status = 250) THEN
IF S.dataIP = NetSystem.anyIP THEN C := WaitDataCon(S) END;
IF S.res = Done THEN
NetTools.curLen := Files.Length(F); NetTools.curPos := 0;
Files.Set(R, F, 0);
NetTools.WriteData(C, R)
END;
NetTools.Disconnect(C);
ReadResponse(S, S.reply)
ELSE
S.res := Failed
END
END
ELSE
COPY(locName, S.reply);
Strings.Append(S.reply, " not found");
S.res := LocFileNotFound
END;
IF C # NIL THEN NetTools.Disconnect(C) END;
IF S.dataC # NIL THEN NetTools.Disconnect(S.dataC) END
END PutFile;
(** Store text as remName on the server.
The text is converted to iso-8859-1. All none ascii content is ignored (colors, fonts, objects, ...).
res:
Done: all ok
TimeOut: server did not answer in time
Failed: no permission or bad file name *)
PROCEDURE PutText*(S: Session; remName: ARRAY OF CHAR; text: Texts.Text);
VAR
C: NetSystem.Connection;
out: Streams.Stream;
BEGIN
S.reply := ""; C := NIL;
SendCmd(S, "TYPE A"); S.bin := FALSE;
ReadResponse(S, line);
IF (S.status < 200) OR (S.status >= 300) THEN
RETURN
END;
SetDataPort(S);
IF S.res = Interrupted THEN SendCmd(S, "TYPE I"); ReadResponse(S, line); RETURN END;
IF S.dataIP = NetSystem.anyIP THEN
ReadResponse(S, line)
ELSE
C := WaitDataCon(S);
IF S.res = Done THEN S.status := 200 END
END;
IF S.status = 200 THEN
line := "STOR ";
Strings.Append(line, remName);
SendCmd(S, line);
ReadResponse(S, S.reply);
IF (S.status = 150) OR (S.status = 250) THEN
IF S.dataIP = NetSystem.anyIP THEN C := WaitDataCon(S) END;
IF S.res = Done THEN
NetTools.curLen := text.len; NetTools.curPos := 0;
out := NetTools.OpenStream(C); MIME.textCont.len := MAX(LONGINT);
MIME.WriteText(text, 0, text.len, out, MIME.textCont, FALSE, FALSE)
END;
NetTools.Disconnect(C);
ReadResponse(S, S.reply)
ELSE
S.res := Failed
END
END;
IF C # NIL THEN NetTools.Disconnect(C) END;
IF S.dataC # NIL THEN NetTools.Disconnect(S.dataC) END;
SendCmd(S, "TYPE I");
ReadResponse(S, line)
END PutText;
(** Delete the file remName from the server.
res:
Done: all ok
Failed: file not found or no permission, see S.reply(Line) *)
PROCEDURE DeleteFile*(S: Session; remName: ARRAY OF CHAR);
BEGIN
S.reply := "DELE ";
Strings.Append(S.reply, remName);
SendCmd(S, S.reply);
ReadResponse(S, S.reply);
IF S.status = 250 THEN
S.res := Done
ELSE
S.res := Failed
END
END DeleteFile;
(** Query the current dir (path).
res:
Done: all ok
Failed: see S.reply(Line) *)
PROCEDURE GetCurDir*(S: Session; VAR curdir: ARRAY OF CHAR);
VAR i, j: INTEGER;
BEGIN
SendCmd(S, "PWD");
ReadResponse(S, S.reply);
IF S.status = 257 THEN
IF S.system = VMS THEN
COPY(S.reply, curdir);
i := 0;
WHILE curdir[i] > " " DO
INC(i)
END;
curdir[i] := 0X
ELSE
i := 0;
WHILE (S.reply[i] # 0X) & (S.reply[i] # 22X) DO
INC(i)
END;
j := 0;
IF S.reply[i] = 22X THEN
INC(i);
WHILE (S.reply[i] # 0X) & (S.reply[i] # 22X) DO
curdir[j] := S.reply[i];
INC(j); INC(i)
END
END;
curdir[j] := 0X
END;
S.res := Done
ELSE
COPY("", curdir);
S.res := Failed
END
END GetCurDir;
(** Create a new directory.
res:
Done: all ok
Failed: see S.reply(Line) *)
PROCEDURE MakeDir*(S: Session; newDir: ARRAY OF CHAR);
BEGIN
S.reply := "MKD ";
Strings.Append(S.reply, newDir);
SendCmd(S, S.reply);
ReadResponse(S, S.reply);
IF S.status = 257 THEN
S.res := Done
ELSE
S.res := Failed
END
END MakeDir;
(** Remove an existing directory.
res:
Done: all ok
Failed: see S.reply(Line) *)
PROCEDURE RmDir*(S: Session; dir: ARRAY OF CHAR);
BEGIN
S.reply := "RMD ";
Strings.Append(S.reply, dir);
SendCmd(S, S.reply);
ReadResponse(S, S.reply);
IF S.status = 250 THEN
S.res := Done
ELSE
S.res := Failed
END
END RmDir;
PROCEDURE *DocHandler(D: Objects.Object; VAR M: Objects.ObjMsg);
BEGIN
WITH D: Documents.Document DO
IF M IS Objects.AttrMsg THEN
WITH M: Objects.AttrMsg DO
IF (M.id = Objects.get) & (M.name = "Gen") THEN
M.class := Objects.String; M.s := "FTPDocs.NewDoc"; M.res := 0
ELSE
TextDocs.DocHandler(D, M)
END
END
ELSIF M IS Objects.LinkMsg THEN
WITH M: Objects.LinkMsg DO
IF M.id = Objects.get THEN
IF M.name = "DeskMenu" THEN
M.obj := Gadgets.CopyPublicObject("NetDocs.FTPDeskMenu", TRUE);
IF M.obj = NIL THEN M.obj := Desktops.NewMenu(Menu) END;
M.res := 0
ELSIF M.name = "SystemMenu" THEN
M.obj := Gadgets.CopyPublicObject("NetDocs.FTPSystemMenu", TRUE);
IF M.obj = NIL THEN M.obj := Desktops.NewMenu(SysMenu) END;
M.res := 0
ELSIF M.name = "UserMenu" THEN
M.obj := Gadgets.CopyPublicObject("NetDocs.FTPUserMenu", TRUE);
IF M.obj = NIL THEN M.obj := Desktops.NewMenu(Menu) END;
M.res := 0
ELSE
TextDocs.DocHandler(D, M)
END
ELSE
TextDocs.DocHandler(D, M)
END
END
ELSE
TextDocs.DocHandler(D, M)
END
END
END DocHandler;
(** Register a ftp URL and get a unique key for it. *)
PROCEDURE RegisterFTPAdr*(host, path, user, passwd: ARRAY OF CHAR; type: CHAR; port: INTEGER): LONGINT;
VAR
portS: ARRAY 8 OF CHAR;
key: LONGINT;
BEGIN
COPY("ftp://", line);
IF user # "" THEN
HyperDocs.ESC(user, "@");
Strings.Append(line, user);
IF passwd # "" THEN
HyperDocs.ESC(passwd, "@");
Strings.AppendCh(line, ":"); Strings.Append(line, passwd)
END;
Strings.AppendCh(line, "@")
END;
Strings.Lower(host, host);
Strings.Append(line, host);
IF port # DefConPort THEN
Strings.AppendCh(line, ":"); Strings.IntToStr(port, portS); Strings.Append(line, portS)
END;
IF path # "" THEN
Strings.Append(line, path);
IF type # 0X THEN
Strings.Append(line, ";type="); Strings.AppendCh(line, type)
END
END;
key := HyperDocs.RegisterLink(line);
RETURN key
END RegisterFTPAdr;
(** Parsing of an ftp url. *)
PROCEDURE SplitFTPAdr*(VAR url, host, path, user, passwd: ARRAY OF CHAR; VAR type: CHAR; VAR port: INTEGER): LONGINT;
VAR
key, i, j, l: LONGINT;
iskey: BOOLEAN;
PROCEDURE Blanks();
BEGIN
WHILE (url[i] # 0X) & (url[i] <= " ") DO
INC(i)
END
END Blanks;
BEGIN
(* Pre: url must be a ftp url *)
type := 0X; port := DefConPort;
COPY("", user); COPY("", passwd);
i := 0; Blanks();
(* skip ftp *)
WHILE (url[i] # 0X) & (url[i] # ":") DO
INC(i)
END;
(* skip :// *)
IF url[i] = ":" THEN
INC(i)
END;
Blanks();
WHILE (url[i] = "/") & (url[i] # 0X) DO
INC(i)
END;
Blanks();
(* look ahead for @ *)
j := i;
WHILE (url[j] # 0X) & (url[j] # "@") & (url[j] # "/") DO
INC(j)
END;
IF url[j] = "@" THEN
(* get user *)
l := LEN(user)-1; j := 0;
WHILE (url[i] # 0X) & (url[i] # ":") & (url[i] # "@") DO
IF (j < l) THEN
user[j] := url[i]; INC(j)
END;
INC(i)
END;
user[j] := 0X; DEC(j);
WHILE (j >= 0) & (user[j] <= " ") DO
user[j] := 0X; DEC(j)
END;
IF url[i] = ":" THEN
(* get password *)
l := LEN(passwd);
INC(i); Blanks(); j := 0;
WHILE (url[i] # 0X) & (url[i] # "@") DO
IF j < l THEN
passwd[j] := url[i]; INC(j)
END;
INC(i)
END;
passwd[j] := 0X; DEC(j);
WHILE (j >= 0) & (passwd[j] <= " ") DO
passwd[j] := 0X; DEC(j)
END
END;
INC(i); Blanks()
END;
(* get host *)
iskey := (user = "") & (passwd = "");
l := LEN(host); j := 0;
WHILE (url[i] # 0X) & (url[i] # ":") & (url[i] # "/") DO
IF (url[i] > " ") & ~Strings.IsDigit(url[i]) THEN
iskey := FALSE
END;
IF j < l THEN
host[j] := url[i]; INC(j)
END;
INC(i)
END;
host[j] := 0X; DEC(j);
WHILE (j >= 0) & (host[j] <= " ") DO
host[j] := 0X; DEC(j)
END;
IF (url[i] = 0X) & iskey THEN
IF host # "" THEN
Strings.StrToInt(host, key);
HyperDocs.RetrieveLink(key, line);
key := SplitFTPAdr(line, host, path, user, passwd, type, port);
RETURN key
ELSE
RETURN HyperDocs.UndefKey
END
END;
IF url[i] = ":" THEN
port := 0; INC(i);
WHILE (url[i] # "/") & (url[i] # 0X) DO
IF Strings.IsDigit(url[i]) THEN
port := port*10+ORD(url[i])-ORD("0")
END;
INC(i)
END;
IF port <= 0 THEN
port := DefConPort
END
END;
(* get path *)
l := LEN(path); j := 0;
IF url[i] # 0X THEN
path[j] := url[i]; INC(j); INC(i);
IF url[i] = "~" THEN
j := 0
END
END;
WHILE (url[i] # 0X) & (url[i] # ";") DO
IF j < l THEN
path[j] := url[i]; INC(j)
END;
INC(i)
END;
path[j] := 0X; DEC(j);
WHILE (j >= 0) & (path[j] <= " ") DO
path[j] := 0X; DEC(j)
END;
IF url[i] = ";" THEN
INC(i); Blanks();
IF CAP(url[i]) # "T" THEN
type := CAP(url[i])
ELSE
WHILE (url[i] # 0X) & (url[i] # "=") DO
INC(i)
END;
IF url[i] = "=" THEN
INC(i); Blanks();
type := CAP(url[i])
ELSE
type := "T"
END
END
END;
HyperDocs.UnESC(host); HyperDocs.UnESC(path);
HyperDocs.UnESC(user); HyperDocs.UnESC(passwd);
key := RegisterFTPAdr(host, path, user, passwd, type, port);
RETURN key
END SplitFTPAdr;
PROCEDURE *LinkSchemeHandler(L: Objects.Object; VAR M: Objects.ObjMsg);
VAR
usr, passw, host: ARRAY NetTools.ServerStrLen OF CHAR;
path: ARRAY NetTools.PathStrLen OF CHAR;
port: INTEGER;
type: CHAR;
BEGIN
WITH L: HyperDocs.LinkScheme DO
IF M IS HyperDocs.RegisterLinkMsg THEN
WITH M: HyperDocs.RegisterLinkMsg DO
IF (M.base = NIL) OR (HyperDocs.CheckPrefix(M.link) >= 0) THEN
M.key := SplitFTPAdr(M.link, host, path, usr, passw, type, port)
ELSIF M.base.prefix = "ftp" THEN
link := "ftp://"; Strings.Append(link, M.base.host);
IF M.base.port > 0 THEN
Strings.AppendCh(link, ":"); Strings.IntToStr(M.base.port, path); Strings.Append(link, path)
END;
HyperDocs.Path(M.base, link, M.link); M.key := HyperDocs.RegisterLink(link)
ELSE
HyperDocs.LinkSchemeHandler(L, M)
END;
IF M.key # HyperDocs.UndefKey THEN
M.res := 0
END
END
ELSIF M IS HyperDocs.FetchMsg THEN
WITH M: HyperDocs.FetchMsg DO
IF M.key # HyperDocs.UndefKey THEN
HyperDocs.RetrieveLink(M.key, line);
M.key := SplitFTPAdr(line, host, path, usr, passw, type, port);
(*GetLogin(host, usr, passw);*)
Texts.WriteString(W, "ftp://");
Texts.WriteString(W, host);
Texts.WriteString(W, path);
Texts.Append(Oberon.Log, W.buf);
IF (cacheS # NIL) & ((cacheS.host # host) OR (cacheS.port # port) OR (cacheS.usr # usr) OR (cacheS.passw # passw)) THEN
Close(cacheS); cacheS := NIL
END;
IF cacheS = NIL THEN
Open(host, usr, passw, port, NIL, cacheS)
END;
IF cacheS.res = Done THEN
GetF(cacheS, path, M.R);
IF cacheS.res # Done THEN
Texts.WriteString(W, cacheS.reply)
ELSE
Texts.WriteString(W, " done"); M.res := 0
END
ELSE
Texts.WriteString(W, cacheS.reply)
END;
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf)
ELSE
IF cacheS # NIL THEN
Close(cacheS); cacheS := NIL;
END;
M.res := 0
END
END
ELSIF M IS Objects.AttrMsg THEN
WITH M: Objects.AttrMsg DO
IF (M.id = Objects.get) & (M.name = "Gen") THEN
M.class := Objects.String;
M.s := "FTPDocs.NewLinkScheme";
M.res := 0
ELSE
HyperDocs.LinkSchemeHandler(L, M)
END
END
ELSE
HyperDocs.LinkSchemeHandler(L, M)
END
END
END LinkSchemeHandler;
PROCEDURE NewLinkScheme*;
VAR L: HyperDocs.LinkScheme;
BEGIN
NEW(L); L.handle := LinkSchemeHandler;
L.usePath := TRUE;
Objects.NewObj := L
END NewLinkScheme;
PROCEDURE TrimmVMS(VAR name: ARRAY OF CHAR);
VAR i: INTEGER;
BEGIN
i := 0;
WHILE (name[i] # 0X) & (name[i] # ";") DO
INC(i)
END;
name[i] := 0X
END TrimmVMS;
PROCEDURE GetDoc(F: Frame; name: ARRAY OF CHAR; type: CHAR): Documents.Document;
VAR
i, j: LONGINT;
D: Documents.Document;
tempName: ARRAY 64 OF CHAR;
T: Texts.Text;
tW: Texts.Writer;
obj: Objects.Object;
bin: BOOLEAN;
BEGIN
IF type # 0X THEN
bin := ~((type = "A") OR (type = "T"))
ELSE
obj := Gadgets.FindObj(Gadgets.context, "Ascii");
IF obj # NIL THEN
Attributes.GetBool(obj, "Value", bin);
bin := ~bin
ELSE
bin := TRUE
END
END;
IF bin THEN
Texts.WriteString(W, "FTPDocs.GetFile ")
ELSE
Texts.WriteString(W, "FTPDocs.GetText ")
END;
Texts.WriteString(W, name);
Texts.Write(W, " ");
Texts.Append(Oberon.Log, W.buf);
j := -1; i := 0;
WHILE name[i] # 0X DO
IF name[i] = "." THEN
j := i
END;
INC(i)
END;
IF ~bin THEN
type := "A";
Texts.OpenWriter(tW);
GetText(F.S, name, tW);
NEW(T); Texts.Open(T, "");
Texts.Append(T, tW.buf)
ELSE
COPY(TempFile, tempName);
IF j > 0 THEN
i := 0;
WHILE tempName[i] # 0X DO
INC(i)
END;
WHILE name[j] # 0X DO
tempName[i] := name[j]; INC(i); INC(j)
END;
tempName[i] := 0X;
IF F.S.system = VMS THEN
TrimmVMS(tempName)
END
END;
GetFile(F.S, name, tempName)
END;
Texts.WriteLn(W);
Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf);
IF F.S.res = Done THEN
IF type = "A" THEN
NEW(D); TextDocs.InitDoc(D);
D.W := HyperDocs.docW; D.H := HyperDocs.docH;
Links.SetLink(D.dsc, "Model", T);
COPY(name, D.name)
ELSE
D := Documents.Open(tempName)
END
ELSE
D := NIL
END;
RETURN D
END GetDoc;
PROCEDURE *ShowEntry(entry: ARRAY OF CHAR);
VAR
link: Objects.Object;
i, j, beg0, beg1, beg2, begL, key: LONGINT;
name: ARRAY 64 OF CHAR;
BEGIN
begL := -1;
IF entry = "" THEN
RETURN
END;
IF system = UNIX THEN
i := 0; beg0 := 0; beg1 := 0; beg2 := 0;
WHILE entry[i] # 0X DO
IF entry[i] <= " " THEN
beg0 := beg1; beg1 := beg2; beg2 := i
END;
INC(i)
END;
i := 0;
WHILE entry[i] # 0X DO
IF (i >= beg2) & ((entry[0] = "d") OR (entry[0] = "-")) THEN
Texts.SetColor(dirW, SHORT(HyperDocs.linkC));
IF begL < 0 THEN
Texts.Append(curF.text, dirW.buf); begL := curF.text.len
END
ELSIF (i >= beg0) & (entry[0] = "l") THEN
Texts.SetColor(dirW, SHORT(HyperDocs.linkC));
IF begL < 0 THEN
Texts.Append(curF.text, dirW.buf); begL := curF.text.len
END
END;
Texts.Write(dirW, entry[i]); INC(i)
END;
Texts.SetColor(dirW, SHORT(Display3.textC));
IF begL >= 0 THEN
i := 0; INC(beg2);
WHILE (entry[beg2] > " ") & (i < 63) DO
name[i] := entry[beg2];
INC(i); INC(beg2)
END;
name[i] := 0X;
IF name = ".message" THEN
message := TRUE
END;
IF name[0] # "/" THEN
COPY(curS.curDir, line);
IF curS.curDir # "/" THEN Strings.AppendCh(line, "/") END;
Strings.Append(line, name);
IF entry[0] = "d" THEN
Strings.AppendCh(line, "/")
END
ELSE
COPY(name, line)
END;
key := RegisterFTPAdr(curS.host, line, "", "", 0X, curS.port);
IF HyperDocs.Visited(key) THEN
Texts.Append(curF.text, dirW.buf);
Texts.ChangeLooks(curF.text, begL, curF.text.len, {1}, NIL, SHORT(HyperDocs.oldLinkC), 0)
END;
link := HyperDocs.LinkControl(key);
Texts.WriteObj(dirW, link)
END;
Texts.WriteLn(dirW)
ELSIF system = VMS THEN
beg0 := 0;
Strings.Search(".dir;", entry, beg0);
IF beg0 < 0 THEN
Strings.Search(".DIR;", entry, beg0)
END;
i := 0;
IF beg0 > 0 THEN
Texts.SetColor(dirW, SHORT(HyperDocs.linkC));
WHILE (entry[i] # 0X) & (i < beg0) DO
Texts.Write(dirW, entry[i]);
INC(i)
END;
Texts.SetColor(dirW, SHORT(Display3.textC));
beg1 := i; entry[beg1] := 0X;
COPY(curS.curDir, line); line[0] := "/";
i := 0;
WHILE (line[i] # 0X) & (line[i] # "]") DO
INC(i)
END;
line[i] := 0X;
Strings.AppendCh(line, "."); Strings.Append(line, entry);
Strings.AppendCh(line, "]");
key := RegisterFTPAdr(curS.host, line, "", "", 0X, curS.port);
link := HyperDocs.LinkControl(key);
Texts.WriteObj(dirW, link);
entry[beg1] := "."; i := beg1
ELSE
beg0 := 0;
Strings.Search(";", entry, beg0);
IF beg0 > 0 THEN
j := 0;
Texts.SetColor(dirW, SHORT(HyperDocs.linkC));
WHILE (entry[i] # 0X) & (i < beg0) & (j < 63) DO
name[j] := entry[i]; INC(j);
Texts.Write(dirW, entry[i]); INC(i)
END;
name[j] := 0X; beg1 := i;
Texts.SetColor(dirW, SHORT(Display3.textC));
COPY(curS.curDir, line); line[0] := "/";
i := 0;
WHILE (line[i] # 0X) & (line[i] # "]") DO
INC(i)
END;
line[i] := 0X;
Strings.AppendCh(line, "]"); Strings.Append(line, name);
key := RegisterFTPAdr(curS.host, line, "", "", 0X, curS.port);
link := HyperDocs.LinkControl(key);
Texts.WriteObj(dirW, link);
i := beg1
END
END;
WHILE entry[i] # 0X DO
Texts.Write(dirW, entry[i]);
INC(i)
END;
Texts.WriteLn(dirW)
END;
Texts.SetColor(W, SHORT(Display3.textC))
END ShowEntry;
PROCEDURE HorzRule(): Objects.Object;
VAR obj: Objects.Object;
BEGIN
obj := Gadgets.CreateObject("BasicFigures.NewRect3D");
Attributes.SetBool(obj, "Filled", TRUE);
Attributes.SetInt(obj, "Color", Display3.textbackC);
Gadgets.ModifySize(obj(Display.Frame), Display.Width, 4);
RETURN obj
END HorzRule;
PROCEDURE DoDir(D: Documents.Document; F: Frame);
VAR
f, o: Objects.Object;
pos: LONGINT;
msgW: Texts.Writer;
U: Gadgets.UpdateMsg;
h: INTEGER;
oldBin: BOOLEAN;
BEGIN
Texts.Delete(F.text, 0, F.text.len);
system := F.S.system; GetCurDir(F.S, F.S.curDir);
f := Gadgets.CreateObject("TextFields.NewTextField");
Attributes.SetString(f, "Value", F.S.curDir);
Attributes.SetString(f, "Cmd", "FTPDocs.ChangeDocDir '#Value '");
WITH f: Display.Frame DO
f.W := 3*f.W; h := f.H
END;
Texts.WriteObj(dirW, f); Texts.Write(dirW, Strings.Tab);
o := Gadgets.CreateObject("BasicGadgets.NewInteger");
f := Gadgets.CreateObject("BasicGadgets.NewCheckBox");
WITH f: Gadgets.Frame DO
f.H := h; f.obj := o
END;
Gadgets.NameObj(f, "Bin");
Attributes.SetInt(f, "SetVal", 0); Attributes.SetString(f, "YesVal", "I");
Texts.WriteObj(dirW, f);
Texts.WriteString(dirW, " binary");
Texts.Write(dirW, 09X);
f := Gadgets.CreateObject("BasicGadgets.NewCheckBox");
WITH f: Gadgets.Frame DO
f.H := h; f.obj := o
END;
Gadgets.NameObj(f, "Ascii");
Attributes.SetInt(f, "SetVal", 1); Attributes.SetString(f, "YesVal", "A");
Texts.WriteObj(dirW, f);
Attributes.SetBool(f, "Value", ~F.S.bin);
Texts.WriteString(dirW, " ascii"); Texts.WriteLn(dirW);
Texts.WriteObj(dirW, HorzRule()); Texts.WriteLn(dirW);
Texts.Append(F.text, dirW.buf);
pos := F.text.len-1;
message := FALSE;
curS := F.S; curF := F;
EnumDir(F.S, ShowEntry);
curS := NIL; curF := NIL;
Attributes.SetInt(F, "LinkColor", HyperDocs.linkC);
Attributes.SetInt(F, "OldLinkColor", HyperDocs.oldLinkC);
F.do := HyperDocs.linkMethods;
IF F.S.res # Done THEN
Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf)
ELSE
D.name := "ftp://";
Strings.Append(D.name, F.S.host);
Strings.Append(D.name, F.S.curDir);
Attributes.SetString(D, "DocumentName", D.name);
U.obj := D; U.F := NIL;
Display.Broadcast(U)
END;
IF message THEN
Texts.OpenWriter(msgW);
Texts.WriteObj(msgW, HorzRule());
Texts.SetFont(msgW, Fonts.This(FixedFont));
Texts.WriteLn(msgW);
oldBin := F.S.bin; GetText(F.S, ".message", msgW); F.S.bin := oldBin;
Texts.Insert(F.text, pos-1, msgW.buf)
END;
Texts.Append(F.text, dirW.buf)
END DoDir;
PROCEDURE GetContext(VAR F: Frame; VAR D: Documents.Document);
BEGIN
D := Desktops.CurDoc(Gadgets.context);
IF (D.dsc # NIL) & (D.dsc IS Frame) & (D.dsc(Frame).S # NIL) THEN
F := D.dsc(Frame)
ELSE
F := NIL
END
END GetContext;
PROCEDURE ScanName(context: Objects.Object; VAR name: ARRAY OF CHAR; VAR bin: BOOLEAN);
VAR
R: Texts.Reader;
S: Texts.Scanner;
obj: Objects.Object;
T: Texts.Text;
i, beg, end, time: LONGINT;
ch: CHAR;
BEGIN
bin := TRUE; COPY("", name);
Texts.OpenScanner(S, Oberon.Par.text, Oberon.Par.pos);
Texts.Scan(S);
IF (S.class = Texts.Char) & (S.c = Oberon.OptionChar) THEN
Texts.Scan(S); bin := (CAP(S.s[0]) # "A") & (CAP(S.s[0]) # "T");
Texts.Scan(S)
ELSE
obj := Gadgets.FindObj(context, "Ascii");
IF obj # NIL THEN
Attributes.GetBool(obj, "Value", bin);
bin := ~bin
ELSE
bin := TRUE
END
END;
IF ((S.class = Texts.Char) & (S.c = "^")) OR Desktops.IsInMenu(Gadgets.context)THEN
T := NIL; time := -1;
Oberon.GetSelection(T, beg, end, time);
IF (time >= 0) & (T # NIL) THEN
Texts.OpenReader(R, T, beg);
Texts.Read(R, ch);
WHILE ~R.eot & (~(R.lib IS Fonts.Font) OR (ch <= " ")) DO
Texts.Read(R, ch)
END
ELSE
COPY("", name);
RETURN
END;
IF ~R.eot & (R.lib IS Fonts.Font) & (ch = 22X) THEN
Texts.Read(R, ch)
END;
i := 0;
WHILE ~R.eot & (R.lib IS Fonts.Font) & (ch > " ") & (ch # 22X) DO
name[i] := ch; INC(i);
Texts.Read(R, ch)
END;
name[i] := 0X
ELSIF S.class IN {Texts.Name, Texts.String} THEN
COPY(S.s, name)
END
END ScanName;
(** Used by the interactive interface to retrieve the selected file and store it under the same name. *)
PROCEDURE GetDocFile*;
VAR
D: Documents.Document;
F: Frame;
name: ARRAY NetTools.MaxLine OF CHAR;
lname: ARRAY 128 OF CHAR;
T: Texts.Text;
Wr: Texts.Writer;
Fi: Files.File;
len: LONGINT;
bin: BOOLEAN;
BEGIN
GetContext(F, D);
IF F # NIL THEN
ScanName(D.dsc, name, bin);
IF name # "" THEN
COPY(name, lname);
IF F.S.system = VMS THEN
TrimmVMS(lname)
END;
IF bin THEN
Texts.WriteString(W, "FTPDocs.GetFile ")
ELSE
Texts.WriteString(W, "FTPDocs.GetText ")
END;
Texts.WriteString(W, name);
Texts.WriteString(W, " => ");
Texts.WriteString(W, lname);
Texts.Write(W, " ");
Texts.Append(Oberon.Log, W.buf);
IF bin THEN
GetFile(F.S, name, lname)
ELSE
NEW(T); Texts.Open(T, "");
Texts.OpenWriter(Wr); GetText(F.S, name, Wr);
Texts.Append(T, Wr.buf);
Fi := Files.New(lname);
Texts.Store(T, Fi, 0, len);
Files.Register(Fi)
END;
Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf)
END
END
END GetDocFile;
PROCEDURE SkipPath(VAR pname, name: ARRAY OF CHAR);
VAR i, j: LONGINT;
BEGIN
i := 0; j := 0;
WHILE (pname[i] # 0X) & (j = 0) DO
IF (pname[i] = "=") & (pname[i+1] = ">") THEN
j := i
ELSE
INC(i)
END
END;
IF j # 0 THEN
pname[j] := 0X;
INC(j, 2); i := 0;
WHILE pname[j] # 0X DO
name[i] := pname[j]; INC(i); INC(j)
END;
name[i] := 0X
ELSE
i := 0; j := 0;
WHILE pname[i] # 0X DO
IF (pname[i] = "/") OR (pname[i] = "\") OR (pname[i] = ":") THEN
j := 0
ELSE
name[j] := pname[i]; INC(j)
END;
INC(i)
END;
name[j] := 0X
END
END SkipPath;
(** Used by the interactive interface to send the selected file and store it under the same name. *)
PROCEDURE PutDocFile*;
VAR
D: Documents.Document;
F: Frame;
name, rname: ARRAY 128 OF CHAR;
T: Texts.Text;
bin: BOOLEAN;
BEGIN
GetContext(F, D);
IF F # NIL THEN
ScanName(D.dsc, name, bin);
IF name # "" THEN
IF bin THEN
Texts.WriteString(W, "FTPDocs.PutFile ")
ELSE
Texts.WriteString(W, "FTPDocs.PutText ")
END;
Texts.WriteString(W, name);
Texts.Write(W, " ");
Texts.Append(Oberon.Log, W.buf);
SkipPath(name, rname);
IF bin THEN
PutFile(F.S, rname, name)
ELSE
NEW(T); Texts.Open(T, name);
PutText(F.S, rname, T)
END;
Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf);
DoDir(D, F)
END
END
END PutDocFile;
(** Used by the interactive interface to delete the selected file. *)
PROCEDURE DeleteDocFile*;
VAR
D: Documents.Document;
F: Frame;
name: ARRAY NetTools.MaxLine OF CHAR;
bin: BOOLEAN;
BEGIN
GetContext(F, D);
IF F # NIL THEN
ScanName(D.dsc, name, bin);
IF name # "" THEN
DeleteFile(F.S, name);
Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf);
DoDir(D, F)
END
END
END DeleteDocFile;
PROCEDURE TrimmCurDirVMS(VAR curDir: ARRAY OF CHAR);
VAR i: LONGINT;
BEGIN
curDir[0] := "/";
i := 0;
WHILE curDir[i] # 0X DO
INC(i)
END;
IF i > 0 THEN
curDir[i-1] := 0X
END
END TrimmCurDirVMS;
(** Used by the interactive interface to change to directory pointed at *)
PROCEDURE ChangeDocDir*;
VAR
F: Frame;
D: Documents.Document;
S: Attributes.Scanner;
old, new: HyperDocs.Node;
key: LONGINT;
BEGIN
GetContext(F, D);
IF F # NIL THEN
Attributes.OpenScanner(S, Oberon.Par.text, Oberon.Par.pos);
Attributes.Scan(S);
IF S.class IN {Attributes.Name, Attributes.String} THEN
ChangeDir(F.S, S.s);
IF F.S.res # Done THEN
Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf)
ELSE
old := HyperDocs.NodeByDoc(D);
DoDir(D, F);
IF F.S.system = VMS THEN
TrimmCurDirVMS(F.S.curDir)
ELSIF F.S.curDir # "/" THEN
Strings.AppendCh(F.S.curDir, "/")
END;
key := RegisterFTPAdr(F.S.host, F.S.curDir, "", "", 0X, F.S.port);
IF (old = NIL) OR (old.key # key) THEN
HyperDocs.Remember(key, old, new)
ELSE
new := old
END;
HyperDocs.LinkNodeToDoc(D, new)
END
END
END
END ChangeDocDir;
(** Extension of TextGadgets used by the interactive FTPDocs. *)
PROCEDURE CopyFrame(VAR C: Objects.CopyMsg; from, to: Frame);
BEGIN
TextGadgets.CopyFrame(C, from, to);
to.S := from.S
END CopyFrame;
PROCEDURE *FrameHandler(F: Objects.Object; VAR M: Objects.ObjMsg);
VAR F1: Frame;
BEGIN
WITH F: Frame DO
IF M IS Objects.CopyMsg THEN
WITH M: Objects.CopyMsg DO
IF M.stamp = F.stamp THEN
M.obj := F.dlink
ELSE
NEW(F1);
F.stamp := M.stamp;
F.dlink := F1;
CopyFrame(M, F, F1);
M.obj := F1
END
END
ELSE
TextGadgets.FrameHandler(F, M)
END
END
END FrameHandler;
PROCEDURE CurrentS(VAR S: Session);
BEGIN
S := NIL;
IF (HyperDocs.context # NIL) & (HyperDocs.context.curDoc # NIL) & (HyperDocs.context.curDoc.dsc IS Frame) THEN
S := HyperDocs.context.curDoc.dsc(Frame).S
END
END CurrentS;
PROCEDURE *LoadDoc(D: Documents.Document);
VAR
F: Frame;
usr, pass, host: ARRAY NetTools.ServerStrLen OF CHAR;
path, name: ARRAY NetTools.PathStrLen OF CHAR;
i, j, k, key: LONGINT;
D2: Documents.Document;
T: Texts.Text;
new: HyperDocs.Node;
port: INTEGER;
P: NetTools.ProxyMsg;
S: HyperDocs.LinkScheme;
type: CHAR;
newC: BOOLEAN;
BEGIN
key := SplitFTPAdr(D.name, host, path, usr, pass, type, port);
IF key = HyperDocs.UndefKey THEN
D.dsc := NIL;
RETURN
END;
IF proxy & NetTools.UseProxy(host) THEN
GetLogin(host, usr, pass);
IF (usr = "ftp") OR (usr = "anonymous") THEN
usr := ""; pass := ""
END;
P.key := RegisterFTPAdr(host, path, usr, pass, type, port);
P.res := -1;
COPY(proxyHost, P.host); P.port := proxyPort;
P.D := D;
S := HyperDocs.LinkSchemeByPrefix("http");
S.handle(S, P);
RETURN
END;
NEW(F); CurrentS(F.S);
IF F.S = NIL THEN
newC := TRUE;
Texts.WriteString(W, host);
Texts.Append(Oberon.Log, W.buf);
Open(host, usr, pass, port, NIL, F.S);
IF F.S.res = Done THEN
Texts.WriteString(W, " connected");
Texts.WriteLn(W);
Texts.Append(Oberon.Log, W.buf)
END
ELSE
newC := FALSE; F.S.res := Done
END;
IF F.S.res = Done THEN
IF F.S.system # VMS THEN
j := -1; i := 0;
WHILE path[i] # 0X DO
IF path[i] = "/" THEN
j := i
END;
INC(i)
END;
IF j > 0 THEN
k := j; path[j] := 0X; INC(j)
ELSE
k := -1
END;
IF (j > 0) & (path # "") THEN
ChangeDir(F.S, path)
ELSIF j = 0 THEN
ChangeDir(F.S, "/"); j := 1; k := 0
END;
IF (j > 0) & (i > j) THEN
IF HyperDocs.context # NIL THEN
HyperDocs.context.replace := FALSE;
HyperDocs.context.history := FALSE
END;
i := 0;
WHILE path[j] # 0X DO
name[i] := path[j]; INC(i); INC(j)
END;
name[i] := 0X;
D2 := GetDoc(F, name, type);
IF D2 # NIL THEN
IF newC THEN
Close(F.S)
END;
D^ := D2^
ELSE
name := ""; path[k] := "/"; ChangeDir(F.S, path)
END
ELSE
name := ""
END
ELSE
i := 0;
WHILE (path[i] # 0X) & (path[i] # "]") DO
INC(i)
END;
IF path[i] = "]" THEN
k := i+1; j := 0;
WHILE path[k] # 0X DO
name[j] := path[k]; INC(j); INC(k)
END;
name[j] := 0X;
path[i+1] := 0X; i := 1;
WHILE path[i] # 0X DO
path[i-1] := path[i]; INC(i)
END;
path[i-1] := 0X;
ChangeDir(F.S, path);
IF name # "" THEN
IF HyperDocs.context # NIL THEN
HyperDocs.context.replace := FALSE;
HyperDocs.context.history := FALSE
END;
D2 := GetDoc(F, name, type);
IF D2 # NIL THEN
IF newC THEN
Close(F.S)
END;
D^ := D2^
ELSE
name := ""
END
END
ELSE
name := ""
END
END;
IF (F.S.res = Done) & (name = "") THEN
TextDocs.InitDoc(D);
NEW(T); Texts.Open(T, "");
TextGadgets.Init(F, T, FALSE);
DoDir(D, F);
IF HyperDocs.context = NIL THEN
IF F.S.system = VMS THEN
TrimmCurDirVMS(F.S.curDir)
END;
key := RegisterFTPAdr(host, F.S.curDir, "", "", 0X, port);
HyperDocs.Remember(key, NIL, new);
HyperDocs.LinkNodeToDoc(D, new)
ELSE
HyperDocs.context.replace := ~newC;
HyperDocs.context.history := TRUE
END;
D.W := HyperDocs.docW; D.H := HyperDocs.docH;
D.dsc := F; D.handle := DocHandler;
F.handle := FrameHandler
END;
IF F.S.res = Done THEN
RETURN
ELSIF HyperDocs.context # NIL THEN
HyperDocs.context.history := FALSE
END
END;
Texts.WriteString(W, " - "); Texts.WriteString(W, F.S.reply);
Texts.WriteLn(W); Texts.Append(Oberon.Log, W.buf);
F.S := NIL; D.dsc := NIL
END LoadDoc;
PROCEDURE NewDoc*;
VAR D: Documents.Document;
BEGIN
NEW(D);
D.Load := LoadDoc; D.Store := NIL;
D.handle := DocHandler;
Objects.NewObj := D
END NewDoc;
PROCEDURE Init();
BEGIN
dataPort := MinDataPort;
NetTools.GetHostPort("FTPProxy", proxyHost, proxyPort, 80);
proxy := proxyHost # "";
cacheS := NIL; curS := NIL
END Init;
BEGIN
Texts.OpenWriter(W);
Texts.OpenWriter(dirW);
Texts.SetFont(dirW, Fonts.This(FixedFont));
Init()
END FTPDocs.