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|
-- Topal: GPG/GnuPG and Alpine/Pine integration
-- Copyright (C) 2001--2010 Phillip J. Brooke
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU General Public License version 3 as
-- published by the Free Software Foundation.
--
-- This program is distributed in the hope that it will be useful,
-- but WITHOUT ANY WARRANTY; without even the implied warranty of
-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-- GNU General Public License for more details.
--
-- You should have received a copy of the GNU General Public License
-- along with this program. If not, see <http://www.gnu.org/licenses/>.
with Ada.Command_Line;
with Ada.Strings.Fixed;
with Ada.Text_IO;
with Configuration;
with Attachments;
with Externals; use Externals;
with Externals.GPG;
with Externals.Mail;
with Externals.Simple; use Externals.Simple;
with Keys;
with Menus; use Menus;
with Misc; use Misc;
with Readline;
with Remote_Mode;
package body Sending is
Send_Modes_Text : constant array (Send_Modes) of String(1..34)
:= (Encrypt => "Encrypt ",
SignEncrypt => "Sign + encrypt ",
ClearSign => "Clear sign ",
NoGPG => "No GPG ",
EncryptPO => "Encrypt (preserve original) ",
SignEncryptPO => "Sign + encrypt (preserve original)",
ClearSignPO => "Clear sign (preserve original) ",
DetachSignPO => "Detached signature ");
Mime_Modes_Text : constant array (Mime_Modes) of String(1..22)
:= (InlinePlain => "Inline plain ",
AppPGP => "Application/PGP ",
Multipart => "Multipart ",
MultipartEncap => "Multipart encapsulated");
Exit_Send_Loop : exception; -- Subroutine says `bail out, please'.
procedure Key_Preselect (K : in out Keys.Key_List;
Recipients : in UBS_Array;
Alt_Sign : in String := "";
Missing : out Boolean) is
begin
-- Can we preselect any keys?
Keys.Empty_Keylist(K);
Keys.Use_Keylist(Recipients, K, Missing);
-- Add our own key. If Alt_Sign is non-empty, then try and add
-- keys for that instead.
declare
AKL : Keys.Key_List;
Found : Boolean := False;
KC : Natural;
The_Key : UBS;
begin
if Alt_Sign /= "" then
Ada.Text_IO.Put_Line("Looking for signing key for `"&Alt_Sign&"' on SAKE list...");
for J in 1..Config.SAKE_Count loop
if ToStr(UAP.Value(Config.SAKE_Email, J)) = Alt_Sign then
Keys.Add_Keys_By_Fingerprint(UAP.Value(Config.SAKE_Key, J),
K, Keys.Both, Found);
if Found then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Added key `"&ToStr(UAP.Value(Config.SAKE_Key, J))&"' for signing..."
& Reset_SGR);
Config.UBS_Opts(My_Key) := UAP.Value(Config.SAKE_Key, J);
else
-- Try again, but only as an encryptor.
Keys.Add_Keys_By_Fingerprint(UAP.Value(Config.SAKE_Key, J),
K, Keys.Encrypter, Found);
if Found then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Added own key `"&ToStr(UAP.Value(Config.SAKE_Key, J))&"' BUT only as encryptor..."
& Reset_SGR);
-- We'll not change My_Key here.
else
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Couldn't add key `"&ToStr(UAP.Value(Config.SAKE_Key, J))&"' for signing..."
& Reset_SGR);
end if;
end if;
end if;
end loop;
end if;
if Alt_Sign /= "" and (not Found) then
Keys.Empty_Keylist(AKL);
Ada.Text_IO.Put_Line("Looking for signing key for `"&Alt_Sign&"' via keyring (& XK list)...");
Keys.Add_Secret_Keys(ToUBS(Alt_Sign),
AKL,
Keys.Both);
-- Any keys to remove on the SXK list?
for J in 1..Config.SXK_Count loop
Keys.Remove_Key(UAP.Value(Config.SXK_Key, J), AKL);
end loop;
KC := Keys.Count(AKL);
Found := KC > 0;
if Found then
if KC = 1 then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Added one signing key..."
& Reset_SGR);
-- Add this one.
Keys.First_Key_From_List(AKL, The_Key);
Keys.Add_Key(The_Key, K, Keys.Both);
Config.UBS_Opts(My_Key) := The_Key;
else
-- Multiple keys...
Ada.Text_IO.Put_Line("Found multiple possible signing keys...");
-- Choose one. If aborted, fall-back to my-key.
Keys.Select_Key_From_List(AKL, The_Key, Found);
-- Found is not aborted...
Found := not Found;
if Found then
Keys.Add_Key(The_Key, K, Keys.Both);
Config.UBS_Opts(My_Key) := The_Key;
else
Ada.Text_IO.Put_Line("Aborted selection of secret key, will consider my-key instead");
end if;
end if;
else
Ada.Text_IO.Put_Line("Can't find alternative key, trying my-key...");
end if;
end if;
if Alt_Sign /= "" and (not Found) then
Keys.Add_Keys_By_Fingerprint(ToUBS(Alt_Sign),
K,
Keys.Encrypter,
Found);
if Found then
Ada.Text_IO.Put_Line("Added encryptor key(s) for self");
end if;
end if;
if (not Found) then
if ToStr(Config.UBS_Opts(My_Key)) = "" then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "my-key is empty; not selecting any keys for self"
& Reset_SGR);
else
Keys.Add_Keys_By_Fingerprint(Value_Nonempty(Config.UBS_Opts(My_Key)),
K,
Keys.Encrypter,
Found);
if Found then
Ada.Text_IO.Put_Line("Added `my-key' key(s) for self");
else
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Warning: my-key="
& ToStr(Config.UBS_Opts(My_key))
& " does not find keys"
& Reset_SGR);
end if;
end if;
end if;
end;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Key_Preselect");
raise;
end Key_Preselect;
procedure Mode_Preselect (K : in Keys.Key_List;
Recipients : in UBS_Array;
SI : out Send_Modes;
MI : out MIME_Modes) is
procedure Set_I (S : in UBS) is
S2 : constant String := ToStr(S);
use Ada.Strings.Fixed;
begin
if Index(S2, "n") /= 0 then SI := NoGPG; end if;
if Index(S2, "e") /= 0 then SI := Encrypt; end if;
if Index(S2, "s") /= 0 then SI := SignEncrypt; end if;
if Index(S2, "c") /= 0 then SI := ClearSign; end if;
if Index(S2, "I") /= 0 then MI := InlinePlain; end if;
if Index(S2, "A") /= 0 then MI := AppPGP; end if;
if Index(S2, "M") /= 0 then MI := Multipart; end if;
if Index(S2, "E") /= 0 then MI := MultipartEncap; end if;
end Set_I;
use type UBS;
begin
SI := NoGPG;
MI := InlinePlain;
-- Consider each SD item. We do them in this order so that
-- later overrides earlier.
for J in 1..Config.SD_Count loop
if ToStr(UAP.Value(Config.SD_KE, J)) = "@ANY@" then
-- User default!
Set_I(UAP.Value(Config.SD_Mode, J));
elsif Ada.Strings.Fixed.Index(ToStr(UAP.Value(Config.SD_KE, J)), "@") /= 0 then
-- Is it an email address? If so...
-- Do any recipients match?
for I in Recipients'Range loop
if UAP.Value(Config.SD_KE, J) = Recipients(I) then
Set_I(UAP.Value(Config.SD_Mode, J));
end if;
end loop;
else
-- Do any keys match?
if Keys.Contains(K, UAP.Value(Config.SD_KE, J)) then
Set_I(UAP.Value(Config.SD_Mode, J));
end if;
end if;
end loop;
if SI /= NoGPG then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Sending defaults to " & Send_Modes_Text(SI)
& Reset_SGR);
end if;
if MI /= InlinePlain then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Sending defaults to " & Mime_Modes_Text(MI)
& Reset_SGR);
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Mode_Preselect");
raise;
end Mode_Preselect;
function The_Content_Type return String is
-- What is the content type for outbound messages? (at least,
-- the bit we're bothered about)
Current_Charset : UBS;
begin
Current_Charset := ToUBS(Externals.Simple.Get_Charmap);
return "text/plain; charset=""" & ToStr(Current_Charset) & """";
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.The_Content_Type");
raise;
end;
procedure Check_Send (Tmpfile : in String;
Non_Pine : in Boolean;
Mime : in Boolean;
Mimefile : in String;
Hdrfile : in String;
Recipients : in UBS_Array) is
begin
if not Non_Pine then
if Mime then
if Externals.Simple.Test_R(Mimefile) then
Ada.Text_IO.Put_Line("The Content-Type being returned is: ");
Cat(Mimefile);
else
Ada.Text_IO.Put_Line("Unchanged Content-Type.");
end if;
end if;
Wait;
Pager(Tmpfile);
Externals.Simple.Clear;
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Recipients (to, cc, bcc; not lcc): "
& Reset_SGR);
for I in Recipients'Range loop
Ada.Text_IO.Put_Line(" " & ToStr(Recipients(I)));
end loop;
Ada.Text_IO.New_Line(1);
if YN_Menu(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Okay to send? "
& Reset_SGR) = No then
Ada.Command_Line.Set_Exit_Status(Ada.Command_Line.Failure);
end if;
-- If save on send is set, then we write a copy of Tmpfile.
if Config.Boolean_Opts(Save_On_Send) then
declare
LM : constant String := ToStr(Topal_Directory) & "/lastmail";
begin
-- If the Hdrfile is readable, that first.
if Hdrfile /= "" and then Test_R(Hdrfile) then
Cat_Out(Hdrfile, LM);
Echo_Append("", LM);
Cat_Append(Tmpfile, LM);
else
Cat_Out(Tmpfile, LM);
end if;
end;
end if;
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Check_Send");
raise;
end Check_Send;
procedure Encrypt (Tmpfile : in String;
Non_Pine : in Boolean;
Mime : in Boolean;
Mimefile : in String;
Send_Keys : in Keys.Key_List;
Selection : in Send_Modes;
Mime_Selection : in MIME_Modes;
AL : in Attachments.Attachment_List;
Hdrfile : in String;
Recipients : in UBS_Array) is
Out_File : constant String := Temp_File_Name("out");
-- PCT = Prepend content-type.
begin
if Mime then
begin
Ada.Text_IO.New_Line(3);
if Mime_Selection = Multipart then
declare
PCT : constant String := Temp_File_Name("pct");
begin
Echo_Out("Content-Type: " & The_Content_Type, PCT);
Echo_Append("", PCT);
Cat_Append(Tmpfile, PCT);
Mv_F(PCT, Tmpfile);
-- Call out to attachments in case we have to modify Tmpfile.
Attachments.Replace_Tmpfile(Tmpfile, AL);
end;
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Encrypt (MIME block 1)");
raise;
end;
end if;
begin
-- Run GPG.
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --encrypt --armor "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& " --output "
& Out_File
& " "
& Keys.Processed_Recipient_List(Send_Keys)
& " "
& Tmpfile,
Out_File);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Encrypt (GPG block)");
raise;
end;
begin
if Selection = EncryptPO then
-- Rename the file appropriately.
Mv_F(Out_File, Tmpfile & ".asc");
else
Mv_F(Out_File, Tmpfile);
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Encrypt (mv block)");
raise;
end;
if Mime then
begin
case Mime_Selection is
when InlinePlain => -- Inline plain text
Echo_Out("Content-Type: text/plain",
Mimefile);
when AppPGP => -- application/pgp
Echo_Out_N("Content-Type: application/pgp; format=text; x-action=encrypt ",
Mimefile);
when Multipart => -- RFC2015 multipart
-- This is the nasty one.
declare
Blk1 : constant String := Temp_File_Name("mp1");
Blk2 : constant String := Temp_File_Name("mp2");
MC : constant String := Temp_File_Name("mc");
begin
-- We first create the two blocks.
-- The first block is easy:
Echo_Out("Content-Type: application/pgp-encrypted",
Blk1);
Echo_Append("", Blk1);
Echo_Append("Version: 1", Blk1);
-- The second block starts with a
-- content-type, then is the tmpfile we've
-- put together.
Echo_Out("Content-Type: application/octet-stream",
Blk2);
Echo_Append("Content-Disposition: attachment; filename=""message.asc""", Blk2);
Echo_Append("", Blk2);
Cat_Append(Tmpfile, Blk2);
-- Now we put them together.
Externals.Mail.Mimeconstruct2(Part1_Filename => Blk1,
Part2_Filename => Blk2,
Output_Filename => MC,
Content_Type => "multipart/encrypted; protocol=""application/pgp-encrypted""",
Prolog => "This is an OpenPGP/MIME encrypted message (RFC2440, RFC3156).");
-- Now we need to split these up.
Mail.Extract_Content_Type_From_Header(MC, Mimefile);
Mail.Extract_Body(MC, Tmpfile);
end;
when MultipartEncap =>
Error("Menu should not have allowed MultipartEncap here");
end case;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Encrypt (MIME block 2)");
raise;
end;
end if;
Check_Send(Tmpfile, Non_Pine, Mime, Mimefile, Hdrfile, Recipients);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Encrypt");
raise;
end Encrypt;
procedure Sign_Encrypt (Tmpfile : in String;
Non_Pine : in Boolean;
Mime : in Boolean;
Mimefile : in String;
Send_Keys : in Keys.Key_List;
Selection : in Send_Modes;
Mime_Selection : in MIME_Modes;
AL : in Attachments.Attachment_List;
Hdrfile : in String;
Recipients : in UBS_Array) is
Out_File : constant String := Temp_File_Name("out");
DTBL_File : constant String := Temp_File_Name("dtbl");
QP_File : constant String := Temp_File_Name("qp");
TDS_File : constant String := Temp_File_Name("tds");
begin
-- Run GPG.
if Mime and then Mime_Selection = MultipartEncap then
-- We need to do something different with Tmpfile.
-- First, we delete all trailing blank lines.
begin
Mail.Delete_Trailing_Blank_Lines(Infile => Tmpfile,
Outfile => DTBL_File);
-- Then we turn it into quoted printable.
-- Also turn it into DOS line endings.
Externals.Mail.Mimeconstruct_Subpart(Infile => DTBL_File,
Outfile => QP_File,
Content_Type => The_Content_Type,
Dos2UnixU => True,
Use_Encoding => True,
Encoding => "quoted-printable");
-- Call out to attachments in case we have to modify QP_File.
Attachments.Replace_Tmpfile(QP_File, AL);
-- Then we clearsign it.
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --detach-sign --textmode --armor --local-user "
& Value_Nonempty(Config.UBS_Opts(my_key))
& " "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& UGA_Str(Signing => True)
& " --output "
& TDS_File
& " "
& QP_File,
TDS_File);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Sign_Encrypt (GPG MIME/4 block)");
raise;
end;
else
if Mime and then Mime_Selection = Multipart then
-- We need to do something different with Tmpfile.
-- First, we delete all trailing blank lines.
begin
Mail.Delete_Trailing_Blank_Lines(Infile => Tmpfile,
Outfile => DTBL_File);
-- Then we turn it into quoted printable.
-- Also turn it into DOS line endings.
Externals.Mail.Mimeconstruct_Subpart(Infile => DTBL_File,
Outfile => QP_File,
Content_Type => The_Content_Type,
Dos2UnixU => True,
Use_Encoding => True,
Encoding => "quoted-printable",
Attachment_Name => "message.txt",
Disposition => Externals.Mail.Inline);
-- Call out to attachments in case we have to modify QP_File.
Attachments.Replace_Tmpfile(QP_File, AL);
-- Then rename QP_File to Tmpfile...
Mv_F(QP_File, Tmpfile);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Sign_Encrypt (Pre-GPG MIME/3 block)");
raise;
end;
end if;
begin
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --encrypt --sign --textmode --armor --local-user "
& Value_Nonempty(Config.UBS_Opts(my_key))
& " "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& UGA_Str(Signing => True)
& " "
& " --output "
& Out_File
& " "
& Keys.Processed_Recipient_List(Send_Keys)
& " "
& Tmpfile,
Out_File);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Sign_Encrypt (GPG block)");
raise;
end;
end if;
begin
if not (Mime and then Mime_Selection = MultipartEncap) then
if Selection = SignEncryptPO then
-- Rename the file appropriately.
Mv_F(Out_File, Tmpfile & ".asc");
else
Mv_F(Out_File, Tmpfile);
end if;
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Sign_Encrypt (MV block)");
raise;
end;
begin
if Mime then
case Mime_Selection is
when InlinePlain => -- Inline plain text
Echo_Out("Content-Type: text/plain",
Mimefile);
when AppPGP => -- application/pgp
Echo_Out("Content-Type: application/pgp; format=text; x-action=encrypt",
Mimefile);
when Multipart => -- RFC2015 multipart
-- This is the nasty one.
-- We are using the combined method allowed in section 6.2.
declare
Blk1 : constant String := Temp_File_Name("mp1");
Blk2 : constant String := Temp_File_Name("mp2");
MC : constant String := Temp_File_Name("mc");
begin
-- We first create the two blocks.
-- The first block is easy:
Echo_Out("Content-Type: application/pgp-encrypted",
Blk1);
Echo_Append("", Blk1);
Echo_Append("Version: 1", Blk1);
-- The second block starts with a
-- content-type, then is the tmpfile we've
-- put together.
Echo_Out("Content-Type: application/octet-stream",
Blk2);
Echo_Append("Content-Disposition: attachment; filename=""message.asc""", Blk2);
Echo_Append("", Blk2);
Cat_Append(Tmpfile, Blk2);
-- Now we put them together.
Externals.Mail.Mimeconstruct2(Part1_Filename => Blk1,
Part2_Filename => Blk2,
Output_Filename => MC,
Content_Type => "multipart/encrypted; protocol=""application/pgp-encrypted""",
Prolog => "This is an OpenPGP/MIME encrypted message (RFC2440, RFC3156).");
-- Now we need to split these up.
Mail.Extract_Content_Type_From_Header(MC, Mimefile);
Mail.Extract_Body(MC, Tmpfile);
end;
when MultipartEncap => -- RFC2015 multipart encapsulated
-- This is the REALLY nasty one. We are
-- encapsulating, so we have to sign then
-- encrypt.
declare
Blk1 : constant String := Temp_File_Name("mp1");
Blk2 : constant String := Temp_File_Name("mp2");
MCS : constant String := Temp_File_Name("mcs");
MC : constant String := Temp_File_Name("mc");
begin
-- We first create the two blocks.
Externals.Mail.Mimeconstruct_Subpart(Infile => TDS_File,
Outfile => Blk2,
Content_Type => "application/pgp-signature",
Dos2UnixU => False,
Use_Encoding => False,
Attachment_Name => "signature.asc",
Disposition => Externals.Mail.Attachment);
Externals.Mail.Mimeconstruct2(Part1_Filename => QP_File,
Part2_Filename => Blk2,
Output_Filename => MCS,
Content_Type => "multipart/signed; protocol=""application/pgp-signature""; micalg="""
& Externals.GPG.Micalg_From_Filename(TDS_File)
& """",
Prolog => "This is an OpenPGP/MIME signed message (RFC2440, RFC3156).");
-- Now the encrypt bit....
Rm_File(Tmpfile);
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --encrypt --armor "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& " --output "
& Tmpfile
& " "
& Keys.Processed_Recipient_List(Send_Keys)
& " "
& MCS,
Tmpfile);
-- The first block is easy:
Echo_Out("Content-Type: application/pgp-encrypted",
Blk1);
Echo_Append("", Blk1);
Echo_Append("Version: 1", Blk1);
-- The second block starts with a
-- content-type, then is the tmpfile we've
-- put together.
Echo_Out("Content-Type: application/octet-stream",
Blk2);
Echo_Append("Content-Disposition: attachment; filename=""message.asc""", Blk2);
Echo_Append("", Blk2);
Cat_Append(Tmpfile, Blk2);
-- Now we put them together.
Externals.Mail.Mimeconstruct2(Part1_Filename => Blk1,
Part2_Filename => Blk2,
Output_Filename => MC,
Content_Type => "multipart/encrypted; protocol=""application/pgp-encrypted""",
Prolog => "This is an OpenPGP/MIME encrypted message (RFC2440, RFC3156).");
-- Now we need to split these up.
Mail.Extract_Content_Type_From_Header(MC, Mimefile);
Mail.Extract_Body(MC, Tmpfile);
end;
end case;
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Sign_Encrypt (MIME block 2)");
raise;
end;
Check_Send(Tmpfile, Non_Pine, Mime, Mimefile, Hdrfile, Recipients);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Sign_Encrypt");
raise;
end Sign_Encrypt;
procedure Clearsign (Tmpfile : in String;
Non_Pine : in Boolean;
Mime : in Boolean;
Mimefile : in String;
Selection : in Send_Modes;
Mime_Selection : in MIME_Modes;
AL : in Attachments.Attachment_List;
Hdrfile : in String;
Recipients : in UBS_Array) is
Out_File : constant String := Temp_File_Name("out");
DTBL_File : constant String := Temp_File_Name("dtbl");
QP_File : constant String := Temp_File_Name("qp");
TDS_File : constant String := Temp_File_Name("tds");
begin
-- Run GPG.
if Mime and then Mime_Selection = Multipart then
-- We need to do something different with Tmpfile.
-- First, we delete all trailing blank lines.
begin
Mail.Delete_Trailing_Blank_Lines(Tmpfile, DTBL_File);
-- Then we turn it into quoted printable.
-- Also turn it into DOS line endings.
Externals.Mail.Mimeconstruct_Subpart(Infile => DTBL_File,
Outfile => QP_File,
Content_Type => The_Content_Type,
Dos2UnixU => True,
Use_Encoding => True,
Encoding => "quoted-printable",
Attachment_Name => "message.txt",
Disposition => Externals.Mail.Inline);
-- Call out to attachments in case we have to modify QP_File.
Attachments.Replace_Tmpfile(QP_File, AL);
-- Then we clearsign it.
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --detach-sign --textmode --armor --local-user "
& Value_Nonempty(Config.UBS_Opts(my_key))
& " "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& UGA_Str(Signing => True)
& " "
& " --output "
& TDS_File
& " "
& QP_File,
TDS_File);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Clearsign (GPG MIME/3 block 1)");
raise;
end;
else
begin
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --clearsign --textmode --local-user "
& Value_Nonempty(Config.UBS_Opts(my_key))
& " "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& UGA_Str(Signing => True)
& " "
& " --output "
& Out_File
& " "
& Tmpfile,
Out_File);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Clearsign (GPG block)");
raise;
end;
end if;
begin
if not (Mime and then Mime_Selection = Multipart) then
if Selection = ClearsignPO then
-- Rename the file appropriately.
Mv_F(Out_File, Tmpfile & ".asc");
else
Mv_F(Out_File, Tmpfile);
end if;
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Clearsign (MV block)");
raise;
end;
begin
if Mime then
case Mime_Selection is
when InlinePlain => -- Inline plain text
Echo_Out("Content-Type: text/plain", Mimefile);
when AppPGP => -- application/pgp
Echo_Out("Content-Type: application/pgp; format=text; x-action=sign",
Mimefile);
when Multipart => -- RFC2015 multipart
-- This is the _really_ nasty one.
-- At this point, we have QP_File, the quoted-printable, and TDS_File, then detached signature.
declare
Blk2 : constant String := Temp_File_Name("mp2");
MC : constant String := Temp_File_Name("mc");
begin
Externals.Mail.Mimeconstruct_Subpart(Infile => TDS_File,
Outfile => Blk2,
Content_Type => "application/pgp-signature",
Dos2UnixU => False,
Use_Encoding => False,
Attachment_Name => "signature.asc",
Disposition => Externals.Mail.Attachment);
Externals.Mail.Mimeconstruct2(Part1_Filename => QP_File,
Part2_Filename => Blk2,
Output_Filename => MC,
Content_Type => "multipart/signed; protocol=""application/pgp-signature""; micalg="""
& Externals.GPG.Micalg_From_Filename(TDS_File)
& """",
Prolog => "This is an OpenPGP/MIME signed message (RFC2440, RFC3156).");
-- Now we need to split these up.
Mail.Extract_Content_Type_From_Header(MC, Mimefile);
Mail.Extract_Body(MC, Tmpfile);
end;
when MultipartEncap =>
Error("Menu should not have allowed MultipartEncap here");
end case;
end if;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Clearsign (MIME block 2)");
raise;
end;
Check_Send(Tmpfile, Non_Pine, Mime, Mimefile, Hdrfile, Recipients);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Clearsign");
raise;
end Clearsign;
procedure Detached_Sig (Tmpfile : in String) is
begin
-- Run GPG.
-- Not using --textmode here, because it could be a binary file.
Externals.GPG.GPG_Wrap(ToStr(Config.UBS_Opts(Gpg_Options))
& " --detach-sign --armor --local-user "
& Value_Nonempty(Config.UBS_Opts(my_key))
& " "
& ToStr(Config.UBS_Opts(general_options))
& " "
& ToStr(Config.UBS_Opts(sending_options))
& " "
& UGA_Str(Signing => True)
& " "
& " --output "
& Tmpfile
& ".asc "
& Tmpfile,
Tmpfile & ".asc");
Wait;
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Detached_Sig");
raise;
end Detached_Sig;
procedure Send_Unchanged (Tmpfile : in String;
Non_Pine : in Boolean;
Mime : in Boolean;
Mimefile : in String;
Hdrfile : in String;
Recipients : in UBS_Array) is
begin
Check_Send(Tmpfile, Non_Pine, Mime, Mimefile, Hdrfile, Recipients);
exception
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Send_Unchanged");
raise;
end Send_Unchanged;
-- We want to send a message.
procedure Send (Tmpfile : in String;
Recipients : in UBS_Array;
Non_Pine : in Boolean := False;
Mime : in Boolean := False;
Mimefile : in String := "") is
Send_Keys : Keys.Key_List;
Selection : SendMime_Index;
Send_Mode : Send_Modes;
Mime_Mode : MIME_Modes;
Originfile : constant String := Temp_File_Name("origin");
Hdrfile : constant String := Temp_File_Name("hdr");
Tmpfile2 : constant String := Temp_File_Name("tmp2");
Fromfile : constant String := Temp_File_Name("from");
Fromfile2 : constant String := Temp_File_Name("from2");
Alt_Sign : UBS;
AL : Attachments.Attachment_List;
My_Key_View : UBS;
Missing : Boolean;
procedure Set_My_Key_View is
begin
if ToStr(Config.UBS_Opts(My_Key)) = "" then
My_Key_View := ToUBS("(not set)");
else
declare
KP : Keys.Key_Properties;
begin
Keys.Process_Key_By_FP(ToStr(Config.UBS_Opts(My_Key)), My_Key_View, KP);
end;
end if;
end Set_My_Key_View;
begin
Debug("+Send");
-- Save the original input.
Externals.Simple.Cat_Out(Tmpfile, Originfile);
-- If Config.Boolean_Opts(All_Headers) is set, then split
-- tmpfile into header and body. But we'll copy the tmpfile
-- into another tmp first, then put the body alone back in
-- Tmpfile.
if Config.Boolean_Opts(All_Headers) then
Externals.Simple.Mv_F(Tmpfile, Tmpfile2);
-- Make sure the line endings are correct.
Externals.Simple.Dos2Unix(Tmpfile2);
Externals.Mail.Extract_Header(Email_Filename => Tmpfile2,
Target_Filename => Hdrfile);
Externals.Mail.Extract_Body(Email_Filename => Tmpfile2,
Target_Filename => Tmpfile);
end if;
-- If Config.UBS_Opts(Read_From) is set, then parse the header to find the
-- fromline and set my-key appropriately. This implies that
-- All_Headers was set, too.
if Config.Boolean_Opts(Read_From) then
Externals.Mail.Formail_Concat_Extract_InOut("From:",
Hdrfile,
Fromfile);
Externals.Simple.Sed_InOut("s/^.*<//; s/>.*$//",
Fromfile, Fromfile2);
declare
F : Ada.Text_IO.File_Type;
begin
Ada.Text_IO.Open(File => F,
Mode => Ada.Text_IO.In_File,
Name => Fromfile2);
Alt_Sign := Unbounded_Get_Line(F);
Ada.Text_IO.Close(F);
end;
end if;
-- Sort out the send menus/msgs.
Key_Preselect(Send_Keys, Recipients, ToStr(Alt_Sign), Missing);
-- Sort out default mode.
Mode_Preselect(Send_Keys, Recipients, Send_Mode, Mime_Mode);
if Missing and then
(Send_Mode = Encrypt or Send_Mode = SignEncrypt) then
Ada.Text_IO.New_Line(2);
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Sending is *ENCRYPTING* but some recipient keys were *MISSING*."
& NL
& "Those recipients will not be able to decrypt this message."
& Reset_SGR);
end if;
-- Initialise attachments.
Attachments.Empty_Attachment_List(AL);
-- View of the current key.
Set_My_Key_View;
-- Loop around doingstuff, now.
Send_Loop:
loop
Ada.Text_IO.New_Line(5);
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Menu_Title))
& "** Main send menu:"
& Reset_SGR);
Ada.Text_IO.Put_Line(" Sending mode: "
& Do_SGR(Config.UBS_Opts(Colour_Info))
& Send_Modes_Text(Send_Mode)
& Reset_SGR);
if Mime then
Ada.Text_IO.Put(" "
& Do_SGR(Config.UBS_Opts(Colour_Info))
& Mime_Modes_Text(Mime_Mode)
& Reset_SGR);
if Mime_Mode = MultipartEncap and then Send_Mode /= SignEncrypt then
Ada.Text_IO.Put(Do_SGR(Config.UBS_Opts(Colour_Important))
& " (will downgrade to Multipart)"
& Reset_SGR);
end if;
Ada.Text_IO.New_Line;
end if;
Ada.Text_IO.Put_Line(" Signing key: "
& Do_SGR(Config.UBS_Opts(Colour_Info))
& ToStr(My_Key_View)
& Reset_SGR);
Ada.Text_IO.Put(Do_SGR(Config.UBS_Opts(Colour_Info))
& Integer'Image(Keys.Count(Send_Keys))
& " key(s)"
& Reset_SGR
& " in key list ");
if Non_Pine then
Ada.Text_IO.New_Line;
Selection := Send_Menu_NP;
elsif Mime then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Info))
& Integer'Image(Attachments.Count(AL))
& " attachment(s)"
& Reset_SGR);
Selection := Send_Menu_Pine_Mime;
else
Ada.Text_IO.New_Line;
Selection := Send_Menu_Pine_Plain;
end if;
begin
case Selection is
when AAbort => -- Abort
Ada.Text_IO.Put_Line("Aborting");
Ada.Command_Line.Set_Exit_Status(Ada.Command_Line.Failure);
exit Send_Loop;
when AddOwn => -- Add own key
if ToStr(Config.UBS_Opts(My_Key)) = "" then
Ada.Text_IO.Put_Line("my-key is empty; not selecting any keys for self");
else
Keys.Add_Keys_By_Fingerprint(Value_Nonempty(Config.UBS_Opts(My_Key)),
Send_Keys,
Keys.Encrypter);
end if;
when EditOwn => -- Change own key
Configuration.Edit_Own_Key;
-- Reset view of the current key.
Set_My_Key_View;
when ViewMail => -- View the input email.
Pager(Tmpfile);
when EditMail => -- Edit the input email.
declare
Editor_Command : UBS;
Dummy : Integer;
use Ada.Text_IO;
use type UBS;
pragma Unreferenced(Dummy);
begin
New_Line(1);
Put_Line("Edit input email:");
Editor_Command
:= ToUBS(Readline.Get_String("Which editor command? (filename will be appended) "));
if ToStr(Editor_Command)'Length > 0 then
Dummy := Externals.Simple.System(Editor_Command & ToUBS(" " & Tmpfile));
end if;
end;
when AttachEdit => -- Edit the attachment list.
Attachments.List(AL);
if Attachments.Count(AL) > 0 then
if (not Mime) then
Ada.Text_IO.New_Line;
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "WARNING: attachments not included in non-MIME emails!"
& Reset_SGR);
Ada.Text_IO.New_Line;
elsif Mime and then not (Mime_Mode = MultipartEncap
or Mime_Mode = Multipart) then
Mime_Mode := Multipart;
Ada.Text_IO.New_Line;
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Note: Forcing sending mode to multipart/* for attachments"
& Reset_SGR);
Ada.Text_IO.New_Line;
end if;
end if;
when Configure => -- Configuration
Configuration.Edit_Configuration;
when ListEdit => -- List keys
Keys.List_Keys(Send_Keys);
when Remote => -- Run remote connection
-- Restore original tmpfile from origin.
Externals.Simple.Cat_Out(Originfile, Tmpfile);
Remote_Mode.Send(Tmpfile, Mime, Mimefile, Recipients);
exit Send_Loop;
when Encrypt | SignEncrypt | ClearSign
| NoGPG
| EncryptPO | SignEncryptPO | ClearSignPO
| DetachSignPO => -- Set Send_Mode.
Send_Mode := Selection;
when InlinePlain | AppPGP
| Multipart | MultipartEncap => -- Set Mime_Mode.
Mime_Mode := Selection;
when Go =>
-- MultipartEncap only applies to SignEncrypt.
-- Downgrade to Multipart otherwise.
if Mime_Mode = MultipartEncap
and then Send_Mode /= SignEncrypt then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "NOTE: replacing MultipartEncap with Multipart for this operation."
& Reset_SGR);
Mime_Mode := Multipart;
end if;
-- Need MIME for attachments.
if not (Mime
and then (Mime_Mode = MultipartEncap
or Mime_Mode = Multipart)) then
if Attachments.Count(AL) > 0 then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "WARNING: attachments not included in non-MIME emails!"
& Reset_SGR);
Ada.Text_IO.New_Line;
end if;
end if;
case Send_Mode is
when Encrypt | EncryptPO => -- Do GPG: encrypt
if Keys.Count(Send_Keys) = 0 then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "No keys are in the key list. Can't encrypt until you select at least one key."
& Reset_SGR);
else
Encrypt(Tmpfile, Non_Pine,
Mime, Mimefile,
Send_Keys, Send_Mode, Mime_Mode,
AL, Hdrfile, Recipients);
exit Send_Loop;
end if;
when SignEncrypt | SignEncryptPO => -- Do GPG: sign-encrypt
if ToStr(Config.UBS_Opts(My_Key)) = "" then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Own key not set! Can't sign until you do this."
& Reset_SGR);
elsif Keys.Count(Send_Keys) = 0 then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "No keys are in the key list. Can't encrypt until you select at least one key."
& Reset_SGR);
else
Sign_Encrypt(Tmpfile, Non_Pine,
Mime, Mimefile,
Send_Keys, Send_Mode, Mime_Mode,
AL, Hdrfile, Recipients);
exit Send_Loop;
end if;
when Clearsign | ClearSignPO => -- Do GPG: clearsign
if ToStr(Config.UBS_Opts(My_Key)) = "" then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Own key not set! Can't sign until you do this."
& Reset_SGR);
else
Clearsign(Tmpfile, Non_Pine,
Mime, Mimefile,
Send_Mode, Mime_Mode,
AL, Hdrfile, Recipients);
exit Send_Loop;
end if;
when DetachSignPO => -- Do GPG: create detached signature
if ToStr(Config.UBS_Opts(My_Key)) = "" then
Ada.Text_IO.Put_Line(Do_SGR(Config.UBS_Opts(Colour_Important))
& "Own key not set! Can't sign until you do this."
& Reset_SGR);
else
Detached_Sig(Tmpfile);
exit Send_Loop;
end if;
when NoGPG => -- Pass thu' unchanged.
Send_Unchanged(Tmpfile, Non_Pine, Mime, Mimefile, Hdrfile, Recipients);
exit Send_Loop;
end case;
end case;
exception
when Exit_Send_Loop =>
exit Send_Loop;
when others =>
Ada.Text_IO.Put_Line(Ada.Text_IO.Standard_Error,
"Exception raised in Sending.Send (Send_Loop)");
raise;
end;
end loop Send_Loop;
exception
when others =>
declare
use Ada.Text_IO;
begin
Put_Line(Standard_Error, "Exception raised in Sending.Send");
Put_Line(Standard_Error, "Send_Keys count = " & Integer'Image(Keys.Count(Send_Keys)));
Put_Line(Standard_Error, "Send_Mode = " & Send_Modes_Text(Send_Mode));
Put_Line(Standard_Error, "Mime_Mode = " & Mime_Modes_Text(Mime_Mode));
Put_Line(Standard_Error, "My_Key = " & ToStr(My_Key_View));
Put_Line(Standard_Error, "AL count = " & Integer'Image(Attachments.Count(AL)));
end;
raise;
end Send;
end Sending;
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