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|
# pgpGpg.tcl
# $Log$
# Revision 1.18 2017/04/22 01:14:14 sysphrog
# Fix gnupg Comment field to dynamically update to the currently running version
#
# Revision 1.17 2017/03/25 03:02:30 az143
# Summary: small patch in pgpGPG to support long and short keyids
#
# Revision 1.16 2012/01/22 22:54:45 az143
# az@debian.org repaired gpg cipher option handling
#
# Revision 1.15 2008/06/18 10:06:15 az143
# patch from debian: added support for gnupg's gpg-agent
#
# Revision 1.14 2005/01/01 20:16:20 welch
# Based on patches from Alexander Zangerl
# lib/pgpGpg.tcl:
# lib/pgpPgp5.tcl:
# fix of an old pgp problem where recipients were duplicated when
# pgp is run in interactive mode
# lib/extrasInit.tcl: a small documentation improvement for the
# pgp(getextcmd) functionality.
# faces(xfaceProg) gains a default (uncompface -X)
# lib/pgpExec.tcl: fix for http://bugs.debian.org/164210: multiple gpg
# subkeys and passphrases. exmh would not ask for the right passphrase.
# lib/addr.tcl: ldap options gain defaults that are compatible with
# debian's openldap config
# lib/mh.tcl: add Msg-Protect and Folder-Protect to the default .mh_profile
# that is generated when setting up new users.
#
# (These changes are inspired by a patch from Alexander, but not the same)
# lib/inc.tcl: use $install(dir,bin) to specify an absolute path to
# the inc.expect script
# lib/seditExtras.tcl: use $install(dir,bin) to specify an absolute path to
# the exmh-async script
# lib/mime.tcl: use $install(dir,bin) to specify an absolute path to
# the ftp.expect script.
# Also changed MimeMakeBoundary to use [clock seconds] instead of
# re-writing the output of [exec date].
#
# Revision 1.13 2001/12/06 16:39:13 kchrist
# Exmh can now parse the GnuPG options file and identify the
# "default-key" (same as "myname" in PGP). Added "--status-fd 2" to
# args_decrypt so that the output can be parsed with Pgp_InterpretOutput.
#
# Revision 1.12 2000/06/15 17:03:11 valdis
# Add X-Mailer: change, fix PGP Comment: line...
#
# Revision 1.11 2000/04/18 18:38:33 valdis
# Fix quote character to use ascii rather than iso8859-ish one
#
# Revision 1.10 2000/02/07 13:23:34 gruber
# fixed run twice function to work with now short keyids
#
# Revision 1.9 1999/10/25 15:38:39 kchrist
# Added a dropKeys pattern to pgpGPG.tcl.
#
# Simplified PGP GUI by removing "detached" signature option. Problem
# was that MIME+standard includes a copy of the message being signed
# in the signature attachement. What really should be used is
# MIME+detached. Decided to overload the meaning of "standard". If
# the format is plain, standard means "binary". If the format is
# anything else, standard means "detached". Less flexibility but
# better chances of "doing the right thing".
#
# Revision 1.8 1999/09/30 03:51:07 kchrist
# pgp($v,cmd_Beauty) was getting in the way of pgp($v,cmd_User) for
# v=gpg so I had to rearrange things a bit.
#
# Revision 1.7 1999/09/27 23:18:45 kchrist
# More PGP changes. Consolidated passphrase entry to sedit field or
# pgpExec routine. Made the pgp-sedit field aware of pgp(keeppass)
# and pgp(echopass). Moved pgp(keeppass), pgp(echopass) and
# pgp(grabfocus) to PGP General Interface. Fixed a minor bug left
# over from my previous GUI changes. Made pgp-sedit field appear and
# disappear based on its enable preference setting.
#
# Revision 1.6 1999/08/24 15:51:07 bmah
# Patch from Kevin Christian to make email PGP key queries work, and
# to make key attachment RFC 2015 compliant.
#
# Revision 1.5 1999/08/13 15:10:06 bmah
# One more try at fixing the problems with 8-byte GPG keyIDs, with a
# patch from Kevin.Christian@lsil.com.
#
# Revision 1.4 1999/08/13 00:39:05 bmah
# Fix a number of key/passphrase management problems: pgpsedit now
# manages PGP versions, keys, and passphrases on a per-window
# basis. Decryption now works when no passphrases are cached.
# One timeout parameter controls passphrases for all PGP
# versions. seditpgp UI slightly modified.
#
# Revision 1.3 1999/08/11 04:09:20 bmah
# Fix problems caused by GPG returning key IDs that are 8 bytes long,
# when exmh (and keyservers) like to work with 4-byte key IDs.
#
# Revision 1.2 1999/08/03 04:05:54 bmah
# Merge support for PGP2/PGP5/GPG from multipgp branch.
#
# Revision 1.1.4.1 1999/06/14 20:05:15 gruber
# updated multipgp interface
#
# Revision 1.1 1999/06/14 15:14:53 markus
# added files
#
# Revision 1.4 1998/12/14 19:22:42 markus
# modulepath, untrusted problem, toplevel
#
# Revision 1.3 1998/12/07 16:10:20 markus
# fixed compressalgo handling
#
# Revision 1.2 1998/12/06 16:23:44 markus
# DecryptExpect and subkey support
#
# Revision 1.1.1.1 1998/11/24 22:34:46 markus
# Initial revision
#
#######################################################################
# GNUPG CONFIG
proc Pgp_gpg_Init {} {
global pgp
###
# Yes, we need network keyfetching
Pgp_WWW_Init
set pgp(pref,HKPkeyserverUrl) { HKPkeyserverUrl HKPKeyServerUrl {keys.pgp.com}
{Horowitz Key Protocol Server}
"The hkp (Horowitz Key Protokol) is a subset of the http.
It's used to tranfer keys to and from a keyserver.
Give here a hkp server name." }
# Needed for Preferences
set pgp(gpg,description) "GNUPG is a free GPLed PGP clone written by Werner Koch"
set pgp(gpg,prefs) [list rfc822 \
choosekey runtwice cacheids minmatch showinline \
shortmsgs autoextract \
keyserver keyquerymethod HKPkeyserverUrl keyserverUrl \
keyothermethod ]
# this is called when preferences are set
proc Pgp_gpg_Preferences {} {
global exmh pgp
# GnuPG algorithms and algorithm modules
set label $pgp(gpg,fullName)
Preferences_Add "$label interface" {} [list \
[list pgp(gpg,useagent) gpgUseAgent OFF "Use GnuPG Agent" \
"If this option is enabled, then Exmh defers all passphrase
handling to GnuPG's gpg-agent. This option overrides and disables
the pgpKeepPass option." ] \
[list pgp(gpg,comment) gpgComment \
"Exmh [eval set exmh(version)]" "GnuPG Comment" \
"Specify the comment GnuPG should put in the comment field
of encrypted or signed text."] \
[list pgp(gpg,modulepath) gpgModulePath \
{/usr/local/lib/gnupg} "GnuPG Modules Path" \
"GnuPG is able to dynamically load cipher, digest, pubkey etc.
algorithm extension modules.
Specify a colon (:) separated list of directories, where exmh should
look for extension modules."] \
[list pgp(gpg,ciphermods) gpgCipherMods \
{skipjack idea} "GnuPG Cipher Modules" \
"The Cipher Algorithm modules, exmh should look for
in the Modules Path."] \
[list pgp(gpg,digestmods) gpgDigestMods \
{tiger} "GnuPG Digest Modules" \
"The Digest Algorithm modules, exmh should look for
in the Modules Path."] \
[list pgp(gpg,pubkeymods) gpgPubkeyMods \
{rsa} "GnuPG PubKey Modules" \
"The Public Key Algorithm modules, exmh should look for
in the Modules Path."] \
[list pgp(gpg,pgp5compatibility) gpgPgp5Compatibility \
ON "PGP 5.0 Compatibility" \
"You MUST have enabled this if you want that GnuPG produces
PGP 5.0 compatible messages.
Having this enabled, you don't need PGP 5.0 any more." ] ]
### clear keeppass if agent is on
if {[set pgp(gpg,useagent)]} {
set pgp(keeppass) 0
}
# Before we can build the algorithm choice preferences part
# we need to examine, which modules are installed on the system
# and build a complete list of algos
Pgp_Gpg_Algorithms
# preferences
Preferences_Add "$label interface" {} [list \
[list pgp(gpg,cipheralgo) gpgCipherAlgo \
[concat CHOICE $pgp(gpg,cipheralgos)] "Default Cipher Algo" \
"Your preferred cipher algorithm. Select 'default' to leave the choice to GnuPG."] \
[list pgp(gpg,digestalgo) gpgDigestAlgo \
[concat CHOICE $pgp(gpg,digestalgos)] "Default Digest Algo" \
"Your preferred digest algorithm. Select 'default' to leave the choice to GnuPG."] \
[list pgp(gpg,compressalgo) gpgCompressAlgo \
[concat CHOICE $pgp(gpg,compressalgos)] "Default Compress Algo" \
"The algorithm, GnuPG uses to compress the text before encrypting.
Select 'default' to leave the choice to GnuPG, or 'none' to leave text uncompressed." ] ]
}
#######################################################################
# GPG BASIC CONFIG
# builtin gpg algos
set pgp(gpg,cipheralgos) {default cast5 idea 3des blowfish aes aes192 aes256 twofish camellia128 camellia192 camellia256}
set pgp(gpg,digestalgos) {default md5 sha1 ripemd160 sha224 sha256 sha384 sha512}
set pgp(gpg,compressalgos) {default zip zlib bzip2 none}
set pgp(gpg,pubkeyalgos) {}
# module files
set pgp(gpg,ciphermodfiles) {}
set pgp(gpg,digestmodfiles) {}
set pgp(gpg,pubkeymodfiles) {}
#######################################################################
# Searches Algorithms
proc Pgp_Gpg_Algorithms {} {
global pgp
set wd [pwd]
foreach path [split $pgp(gpg,modulepath) :] {
set path [string trim $path]
catch {
cd $path
foreach file [glob -nocomplain *] {
if { ![file isdirectory $file] } {
if {[lsearch $pgp(gpg,ciphermods) $file] >= 0} {
lappend pgp(gpg,cipheralgos) $file
lappend pgp(gpg,ciphermodfiles) ${path}/$file
} elseif {[lsearch $pgp(gpg,digestmods) $file] >= 0} {
lappend pgp(gpg,digestalgos) $file
lappend pgp(gpg,digestmodfiles) ${path}/$file
} elseif {[lsearch $pgp(gpg,pubkeymods) $file] >= 0} {
lappend pgp(gpg,pubkeyalgos) $file
lappend pgp(gpg,pubkeymodfiles) ${path}/$file
}
}
}
}
}
cd $wd
}
# Simple Dialog Box to choose Algorithms
proc Pgp_gpg_ChooseAlgos {} {
global pgp
if [winfo exists .gregor] {
return
}
set t [toplevel .gregor]
wm title $t "Default Algorithms"
wm resizable $t 0 0
set m1 [frame $t.main1]
pack $m1 -side left
set m2 [frame $t.main2]
pack $m2 -side left
# Cipheralgo
set f [frame $m2.frame1]
pack $f -side top -expand 1 -fill x
set l [label $m1.cipher -text "Default cipheralgo"]
pack $l -side top
foreach algo $pgp(gpg,cipheralgos) {
set r [radiobutton $f.$algo -variable pgp(gpg,cipheralgo) \
-text $algo -value $algo]
pack $r -side left
}
# Digestalgo
set f [frame $m2.frame2]
pack $f -side top -expand 1 -fill x
set l [label $m1.digest -text "Default digestalgo"]
pack $l -side top
foreach algo $pgp(gpg,digestalgos) {
set r [radiobutton $f.$algo -variable pgp(gpg,digestalgo) \
-text $algo -value $algo]
pack $r -side left
}
# Compressalgo
set f [frame $m2.frame3]
pack $f -side top -expand 1 -fill x
set l [label $m1.compress -text "Default compressalgo"]
pack $l -side top
foreach algo $pgp(gpg,compressalgos) {
set r [radiobutton $f.$algo -variable pgp(gpg,compressalgo) \
-text $algo -value $algo]
pack $r -side left
}
# OK
set b [button $f.ok -text "OK" -command "destroy $t"]
pack $b -side right
}
# Forms the standard flags and arguments of the commandline
proc Pgp_Gpg_Arglist {} {
global pgp
set modfiles \
[concat $pgp(gpg,ciphermodfiles) \
$pgp(gpg,digestmodfiles) \
$pgp(gpg,pubkeymodfiles) ]
ldelete modfiles {}
set arglist [list --no-greeting --comment $pgp(gpg,comment)]
if {$pgp(gpg,useagent)} {
lappend arglist --use-agent
}
# Take it
if {$pgp(gpg,pgp5compatibility)} {
lappend arglist --force-v3-sigs
# default: cast5
switch $pgp(gpg,cipheralgo) {
3des {}
cast5 {}
idea {}
default {set pgp(gpg,cipheralgo) cast5}
}
# default: sha1
switch $pgp(gpg,digestalgo) {
md5 {}
sha1 {}
default {set pgp(gpg,digestalgo) sha1}
}
switch $pgp(gpg,compressalgo) {
zip {}
default {set pgp(gpg,compressalgo) zip}
}
}
foreach modfile $modfiles {
set arglist [concat $arglist [list \
--load-extension $modfile] ]
}
if {$pgp(gpg,cipheralgo) != "default"} {
lappend arglist --personal-cipher-preferences $pgp(gpg,cipheralgo)
}
if {$pgp(gpg,digestalgo) != "default"} {
lappend arglist --personal-digest-preferences $pgp(gpg,digestalgo)
}
# compressalgo
if {$pgp(gpg,compressalgo) != "default" } {
if {$pgp(gpg,compressalgo) == "none"} {
lappend arglist -z 0
} else {
lappend arglist --personal-compress-preferences $pgp(gpg,compressalgo)
}
}
ldelete arglist {}
return $arglist
}
#######################################################################
# Flags, Commands, Patterns, Settings
#
# Should config file be parsed
set pgp(gpg,parse_config) 1
#######
# Exec
#############
# Exec_Batch
# Batchmode flags
set pgp(gpg,flags_batch) {--batch --status-fd 2 [Pgp_Gpg_Arglist]}
#
proc Pgp_gpg_PassFdSet {} {
upvar tclcmd tclcmd
set tclcmd [linsert $tclcmd 2 --passphrase-fd 0]
}
#
proc Pgp_gpg_PassFdUnset {} {
}
###################
# Exec_Interactive
# Interactive flags
set pgp(gpg,flags_interactive) {[Pgp_Gpg_Arglist]}
# Cleanup output
set pgp(gpg,cmd_cleanOutput) { regsub -all "\[\x0d\x07]" $output {} output
regexp "gpg:.*\$" $output output
set output [string trim $output] }
###############
# Exec_KeyList
# List pubkeys args prototype
set pgp(gpg,args_listPub) {--with-colons --list-keys \"$pattern\"}
# List seckeys args prototype
set pgp(gpg,args_listSec) {--with-colons --list-secret-keys \"$pattern\"}
# Pattern that matches out revoked and nonvalid keys
set pgp(gpg,pat_dropKeys) {(^|\n)(pub|sub|sec|ssb|uid):[dren]:[^\n]+}
# Where to split up the listKeys raw output to form a list
set pgp(gpg,pat_splitKeys) \n
# Patterns that match out interesting keys
set pgp(gpg,pat_keySec) \
{^(pub|sec):[^:]*:[^:]*:([^:]*):([0-9A-F]+):[^:]*:[^:]*:[^:]*:[^:]*:([^:]+).*$}
set pgp(gpg,pat_keySec_sub) \
{^(ssb):[^:]*:[^:]*:([^:]+):([0-9A-F]+):[^:]*:[^:]*:[^:]*:[^:]*:[^:]*.*$}
set pgp(gpg,pat_keyPub) $pgp(gpg,pat_keySec)
set pgp(gpg,pat_keyPub_sub) \
{^(sub):[^:]*:[^:]*:([^:]+):([0-9A-F]+):[^:]*:[^:]*:[^:]*:[^:]*:[^:]*.*$}
set pgp(gpg,pat_uid) \
{^(uid):[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:[^:]*:([^:]+).*$}
# TclCmd to match out userid and keyid
set pgp(gpg,cmd_keyMatch) { if [set match [regexp $keypattern $line {} {} algo keyid userid]] {
switch $algo {
1 {set algo RSA}
16 {set algo ELG}
17 {set algo DSA}
20 {set algo ELG}
}
}
set match }
set pgp(gpg,cmd_keyMatch_sub) { if [set match [regexp $subkeypattern $line {} {} algo keyid]] {
switch $algo {
1 {set algo RSA}
16 {set algo ELG}
17 {set algo DSA}
20 {set algo ELG}
}
}
set match }
set pgp(gpg,cmd_uidMatch) { regexp $uidpattern $line {} {} userid }
###############
# Exec_GetKeys
set pgp(gpg,args_exportKey) {--export --armor --textmode -o $file $keyid}
###############
# Exec_Encrypt
set pgp(gpg,args_encrypt) {[concat -eat -o $out [set recips {}; foreach id [Pgp_Misc_Map key {lindex $key 0} $tokeys] {lappend recips -r $id}; set recips] $in]}
###################
# Exec_EncryptSign
set pgp(gpg,args_encryptSign) {[concat -east -o $out -u $keyid [set recips {}; foreach id [Pgp_Misc_Map key {lindex $key 0} $tokeys] {lappend recips -r $id}; set recips] $in]}
############
# Exec_Sign
set pgp(gpg,args_signClear) {--clearsign --armor --textmode -u $keyid -o $out $in}
set pgp(gpg,args_signBinary) {--sign --armor --textmode -u $keyid -o $out $in}
####################
# Exec_SignDetached
set pgp(gpg,args_signDetached) {-abt -u $keyid -o $out $in}
#####################
# Exec_CheckPassword
set pgp(gpg,pat_checkError) "(BAD_PASSPHRASE\[^\n]+)\n"
#######################
# Exec_DetDecryptKeyid
set pgp(gpg,args_getDecryptKeyid) {--dry-run $in}
set pgp(gpg,pat_getDecryptKeyid) "NEED_PASSPHRASE \[\[:alnum:]_]+ (\[\[:alnum:]_]+)"
set pgp(gpg,pat_getDecryptSym) "NEED_PASSPHRASE_SYM"
###############
# Exec_Decrypt
set pgp(gpg,args_decrypt) {--status-fd 2 -o $out $in}
##################### >>>>>>>>>>>> DELETE
# Exec_DecryptExpect
#set pgp(gpg,expectpat,passprompt) "NEED_PASSPHRASE (\[^ \n]*)"
#set pgp(gpg,expectpat,conventional) {NEED_PASSPHRASE_SYM}
#set pgp(gpg,expectpat,publickey) "Do-Not-Match"
#set pgp(gpg,expectpat,secretmissing) "NO_SECKEY"
#set pgp(gpg,expectpat,nopgpfile) {BADARMOR|NODATA}
#set pgp(gpg,cmd_DecryptExpect) {gpg --no-greeting --status-fd 2 -o $outfile $infile}
##############
# Exec_Verify
set pgp(gpg,args_verifyOnly) {--verify $in}
set pgp(gpg,args_verifyOut) {-o $out $in}
######################
# Exec_VerifyDetached
set pgp(gpg,args_verifyDetached) {--verify $sig $text}
###################
# Exec_ExtractKeys
set pgp(gpg,args_importKey) {--import $file}
#########################
# ShowMessage keypattern
set pgp(gpg,pat_validKeys) "\n?(ssb|pub|sec|sub|uid)\[^\n]*"
##################
# InterpretOutput
# command that matches out keyid in pgp output
set pgp(gpg,cmd_Keyid) {
if {[regexp {GOODSIG ([^ ]*)} $in {} pgpresult(keyid)]} {
} elseif {[regexp {BADSIG ([^ ]*)} $in {} pgpresult(keyid)]} {
} else {regexp {ERRSIG ([^ ]*)} $in {} pgpresult(keyid)}
# Keyservers like only the last four octets of the keyid.
if {[info exists pgpresult(keyid)]} {
set keyidLength [string length $pgpresult(keyid)]
set pgpresult(keyid) [string range $pgpresult(keyid) [expr $keyidLength-8] $keyidLength]
}
}
# command that tailors output to be nice looking
set pgp(gpg,cmd_Beauty) {
set pgpresult(msg) $in
regsub -all "\\\[GNUPG:\\\]\[^\n\]*\n*" $pgpresult(msg) {} pgpresult(msg)
regsub -all {gpg: } $pgpresult(msg) {} pgpresult(msg)
set pgpresult(msg) [string trim $pgpresult(msg)]
}
# patterns for interpreting output
set pgp(gpg,pat_SecretMissing) {ENC_TO.*DECRYPTION_FAILED}
set pgp(gpg,pat_PublicMissing) {ERRSIG}
set pgp(gpg,pat_GoodSignature) {GOODSIG}
set pgp(gpg,pat_Untrusted) {(TRUST_UNDEFINED|TRUST_NEVER)}
set pgp(gpg,pat_BadSignature) {BADSIG}
set pgp(gpg,pat_UnknownError) {ERROR}
# command that matches out the Originator
set pgp(gpg,cmd_User) {
regexp {(GOODSIG|BADSIG) [^ ]* ([^\n]*)} $in {} {} user
}
##################
# WWW_QueryHKPKey
set pgp(gpg,args_HKPimport) {--keyserver $server --recv-keys 0x$id}
}
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