From 80438cd2af17083d85bb12da6756961abfedecbb Mon Sep 17 00:00:00 2001 From: Guilhem Moulin Date: Sat, 21 Mar 2015 17:13:32 +0100 Subject: Move the CLI part to a dedicated dir, with a separate Makefile. --- cli/icevault | 907 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 907 insertions(+) create mode 100755 cli/icevault (limited to 'cli/icevault') diff --git a/cli/icevault b/cli/icevault new file mode 100755 index 0000000..43b8e50 --- /dev/null +++ b/cli/icevault @@ -0,0 +1,907 @@ +#!/usr/bin/perl -T + +# IceVault - An external password manager for firefox +# Copyright © 2015 Guilhem Moulin +# +# This program is free software: you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation, either version 3 of the License, or (at +# your option) any later version. +# +# 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 . + +use strict; +use warnings; + +our $VERSION = '0.1'; +use Getopt::Long qw/:config posix_default no_ignore_case gnu_compat + bundling auto_version/; +use Encode qw/decode_utf8 encode_utf8/; +use I18N::Langinfo (); +use List::Util qw/all any first min none/; + + +# Clean up PATH, and set TMPDIR to a ramdisk's mountpoint if possible +$ENV{PATH} = join ':', qw{/usr/local/bin /usr/bin /bin}; +$ENV{TMPDIR} //= first { -d } qw{/dev/shm /run/shm /var/run/shm /tmp}; +delete @ENV{qw/IFS CDPATH ENV BASH_ENV/}; + +my $LANGINFO = I18N::Langinfo::langinfo(I18N::Langinfo::CODESET()); +my $LOCALE = Encode::find_encoding $LANGINFO; +my %CONFIG; +my $SOCKET; + + +####################################################################### +# Utilities + +# myprintf [FILEHANDLE,] FORMAT, LIST +# Like printf, but allows locale-dependent markup. +sub myprintf($@) { + my $fh = ref $_[0] eq 'GLOB' ? shift : \*STDOUT; + my $format = shift; + chomp $format; + $LANGINFO =~ /^utf-?8$/aai ? $format =~ s/C<%s>/\N{U+2018}%s\N{U+2019}/g + : $format =~ s/C<%s>/'%s'/g; + $format =~ s/I<%s>/%s/g; + $format =~ s/B<%s>/%s/g; + die "Illegal markup '$1' in message:\n", $format if $format =~ /([A-Z])<%s>/; + printf $fh map {$LOCALE->encode($_)} ($format."\n", @_); +} + +# error FORMAT, LIST +sub error($@) { + myprintf \*STDERR, shift, @_; + exit 1; +} + +# warning FORMAT, LIST +sub warning($@) { + myprintf \*STDERR, shift, @_; +} + +# Print usage and exit. +sub usage($) { + my $rv = shift; + my $fh = $rv ? \*STDERR : \*STDOUT; + print $fh "Usage: $0 [OPTIONS] [fill] scheme://hostname/identity\n" + ." or: $0 [OPTIONS] insert [identity]\n" + ." or: $0 [OPTIONS] dump scheme://hostname/identity\n" + ." or: $0 [OPTIONS] clip scheme://hostname/identity\n" + ." or: $0 [OPTIONS] edit scheme://hostname/identity\n" + ." or: $0 [OPTIONS] ls [scheme://[hostname/[identity]]]\n" + . "Consult the manual page for more information.\n"; + exit $rv; +} + +# grepIdx BLOCK LIST +# Evaluates the BLOCK for each element of LIST (locally setting $_ to +# each element) and returns the list value consisting of the index of +# those elements for which the expression evaluated to true. +sub grepIdx(&@) { + my ($code, @list) = @_; + my @ret; + for (my $i = 0; $i <= $#list; $i++) { + local $_ = $list[$i]; + push @ret, $i if $code->(); + } + return @ret; +} + +# firstIdx BLOCK LIST +# Evaluates the BLOCK for each element of LIST (locally setting $_ to +# each element) and returns the first index of those elements for which +# the expression evaluated to true. Or undef if the expression never +# evaluates to true. +sub firstIdx(&@) { + my ($code, @list) = @_; + for (my $i = 0; $i <= $#list; $i++) { + local $_ = $list[$i]; + return $i if $code->(); + } + return; +} + +sub groupByName(@) { + my @fields = @_; + my %indices; + for (my $i = 0; $i <= $#fields; $i++) { + push @{$indices{$fields[$i]->{name}}}, $i; + } + return %indices; +} + +sub delete($$) { + my ($x, $l) = @_; + @$l = grep { $_ ne $x } @$l; +} + + +####################################################################### + +# Load the given configuration file +sub loadConfig($) { + my $configFile = shift; + error "Configuration file C<%s> doesn't exist", $configFile unless -f $configFile; + open my $CONFIG, '<', $configFile or error "Can't open C<%s>: %s", $configFile, $!; + while (<$CONFIG>) { + chomp; + s/#.*//; # ignore comments + next if /^\s*$/; # ignore empty and blank lines + /^([-\@\w.]+)(?:\s*=\s*)(\p{print}+)/ or error "Can't parse config line: C<%s>", $_; + $CONFIG{$1} //= $2; + } + close $CONFIG; +} + +# Connect to the given socket and assign the IO::Socket object to +# $SOCKET. If the socket path is relative, prepend the default Firefox +# profile (or the first profile found if there is no default profile). +# Returns "scheme://hostname:port" (the ":port" part is optional) +sub connect($) { + my $sockname = shift; + + if ($sockname !~ /^\//) { # relative path + my $ffdir = "$ENV{HOME}/.mozilla/firefox"; + opendir my $dh, $ffdir or error "Can't open directory C<%s>: %s", $ffdir, $!; + my $profile; + while (readdir $dh) { + next if $_ eq '.' or $_ eq '..'; + next unless -d "$ffdir/$_"; + if (/\.default$/) { # default profile takes precedence + $profile = $_; + last; + } + $profile //= $_; + } + closedir $dh; + error "No Firefox profile found under C<%s>", $ffdir unless defined $profile; + $sockname = "$ffdir/$profile/$sockname"; + myprintf \*STDERR, "Using socket C<%s>", $sockname if $CONFIG{debug}; + } + + require 'IO/Socket/UNIX.pm'; + $SOCKET = IO::Socket::UNIX->new( Type => IO::Socket::UNIX::SOCK_STREAM(), Peer => $sockname ) + or error "Can't connect to socket C<%s>: %s", $sockname, $!; + + # get the URI greeting; don't perform domain validation (it's done + # by the browser), but ensure that it doesn't contain non-graphical + # chars, : or / + require 'JSON.pm'; + my $uri = getResponse(); + $uri =~ s/\A([A-Za-z0-9-]+:\/\/[^\P{Graph}:\/]+(?::\d+)?)(?:\/.*)?\z/$1/ + or error "Invalid URI C<%s>", $uri; + + my $scheme = $uri =~ s/:\/\/.*//r; + warning "Warning: Insecure (%s://) connection! Form values can be stolen", $scheme + unless $scheme eq 'https'; + + return lc $uri; +} + +# Read a response line on the socket, and return the decoded scalar or +# object. +sub getResponse() { + my $buf = $SOCKET->getline; + chomp $buf; + myprintf \*STDERR, "S: %s", decode_utf8 $buf if $CONFIG{debug}; + my ($code, $msg) = split / /, $buf, 2; + # allow $msg to be decoded to a string + $msg = JSON->new->utf8->allow_nonref->decode($msg) if defined $msg; + if ($code eq 'OK') { + return $msg; + } + elsif ($code eq 'BYE') { + # terminates the connection + $SOCKET->close; + undef $SOCKET; + } + elsif ($code eq 'ERROR') { + error "Server said: C<%s>", 'ERROR ' . decode_utf8 $msg; + } + else { + error "Unexpected response from server: C<%s>", decode_utf8 $msg; + } +} + +# Send the given UTF8 string (with a linefeed appended) on to the +# socket, flush the handle, then return the server response. +sub sendCommand(@) { + my $command = join(' ',@_); + myprintf \*STDERR, "C: %s", Encode::decode_utf8 $command if $CONFIG{debug}; + $command .= "\n"; + for (my $offset = 0; $offset < length $command;) { + $offset += $SOCKET->syswrite($command, length($command) - $offset, $offset); + } + $SOCKET->flush; + getResponse(); +} + +# Get all identities with the given $prefix. If there are multiple +# matches and $all is false, limit the output to one depth more than the +# longuest common prefix. +sub complete($;$) { + my $prefix = shift // ''; + my $all = shift; + require 'File/Glob.pm'; + + my $pat = $CONFIG{store}; + my ($s, $h, $i); # extract URI components from the prefix + if ($prefix =~ /\A([A-Za-z0-9-]+):\/\/([^\P{Graph}:\/]+(?::\d+)?)\/([^\P{Print}\/]*)\z/) { + ($s, $h, $i) = ($1, $2, $3); + } elsif ($prefix =~ /\A([A-Za-z0-9-]+):\/\/([^\P{Graph}\/]*)\z/) { + ($s, $h, $i) = ($1, $2, undef); + } elsif ($prefix =~ /\A([A-Za-z0-9-]*)(:\/?)?\z/) { + ($s, $h, $i) = ($1, (defined $2 ? '' : undef), undef); + } else { + exit; + } + + # construct a glob pattern with these URI components + my ($gs, $gh, $gi) = ($s, $h, $i); + s/([\\\[\]\{\}\*\?\~])/\\$1/g foreach grep defined, ($gs, $gh, $gi); # escape meta chars + + # add trailing wildcards + $gs .= '*' if defined $gs and !defined $gh; + $gh .= '*' if defined $gh and !defined $gi; + $gi .= '*' if defined $gi; + + my $glob = $pat; + $glob =~ s/([\\\[\]\{\}\*\?\~])/\\$1/g; + $glob =~ s{\%(.)}{ $1 eq '%' ? '%' : + $1 eq 's' ? $gs // '*' : + $1 eq 'h' ? $gh // '*' : + $1 eq 'i' ? $gi // '*' : + die "Invalid placeholder %$1" }ge; + + # construct regexp to extract the URI compontents of the matching URIs + my ($ps, $ph, $pi) = ($s, $h, $i); + $ps = defined $h ? qr/(?\Q$s\E)/ : (defined $s and $s ne '') ? qr/(?\Q$s\E[A-Za-z0-9-]*)/ : qr/(?[A-Za-z0-9-]+)/; + $ph = defined $i ? qr/(?\Q$h\E)/ : (defined $h and $h ne '') ? qr/(?\Q$h\E[^\P{Graph}\/]*)/ : qr/(?[^\P{Graph}\/]+)/; + $pi = (defined $i and $i ne '') ? qr/(?\Q$i\E[^\P{Print}\/]*)/ : qr/(?[^\P{Print}\/]+)/; + + $pat =~ s/(\%.)([^\%]*)\z/$1.quotemeta($2)/e; + $pat =~ s{(.*?)\%(.)}{$2 eq '%' ? '%' : + $2 eq 's' ? quotemeta($1).$ps : + $2 eq 'h' ? quotemeta($1).$ph : + $2 eq 'i' ? quotemeta($1).$pi : + die "Invalid placeholder %$1"}ge; + $pat = qr/\A$pat\z/; + + myprintf \*STDERR, "Using glob pattern C<%s>", $glob if $CONFIG{debug}; + myprintf \*STDERR, "Using regexp C<%s>", "$pat" if $CONFIG{debug}; + + my @matches; + foreach my $filename (File::Glob::bsd_glob($glob)) { + $LOCALE->decode($filename) =~ $pat or die "$filename doesn't match $pat"; + push @matches, "$+{s}://$+{h}/$+{i}"; + } + return @matches if $all or $#matches < 1; + + # find the longest common prefix to determine the depth level of completion + $matches[0] =~ /\A([A-Za-z0-9-]+):\/\/([^\P{Graph}:\/]+(?::\d+)?)\// or die; + ($s, $h) = ($1, $2); + + if (all { /\A\Q$s\E:\/\/\Q$h\E\// } @matches) { # common host: list all ids + } elsif (all { /\A\Q$s\E:\/\// } @matches) { # common scheme: list only hosts + s#/[^\P{Print}\/]+\z#/# foreach @matches; + } else { # no common scheme: list only schemes + s#://[^\P{Graph}\/]+/[^\P{Print}\/]+\z#://# foreach @matches; + } + + my %matches = map {( $_ => 1 )} @matches; + return sort keys %matches; +} + +# Redact passwords, unless $CONFIG{'show-passwords'} is set. +sub safeValue($;$) { + my $field = shift; + my $value = shift // $field->{value}; + return ($field->{type} eq 'password' and !$CONFIG{'show-passwords'}) ? + ('x' x length $value) : $value; +} + +# Send a FILL command with the given form index and field values. +sub fill($$@) { + my $idx = shift; + my $form = shift; + my @fill = @_; + + return if none {defined} @fill; # noop + for (my $i = 0; $i <= $#fill; $i++) { + myprintf "Filling field C<%s>, value C<%s>", + $form->{fields}->[$i]->{name}, + safeValue($form->{fields}->[$i], $fill[$i]) + if defined $fill[$i]; + } + + sendCommand('FILL', $idx, JSON::encode_json(\@fill)); +} + +# Parse a scheme://hostname(:port)?/identity, and return the associated +# file. +sub getIdentityFile($) { + my $id = shift; + $id =~ /\A([A-Za-z0-9-]+):\/\/([^\P{Graph}:\/]+(?::\d+)?)\/([^\P{Print}\/]+)\z/ + or error "Invalid identity C<%s>", $id; + my ($s, $h, $i) = ($1, $2, $3); + + my $filename = $CONFIG{store}; + $filename =~ s{\%(.)}{ $1 eq '%' ? '%' : + $1 eq 's' ? $s : + $1 eq 'h' ? $h : + $1 eq 'i' ? $i : + die "Invalid placeholder %$1" }ge; + return $filename; +} + +# Decrypt the given identity file and return the YAML-parsed form. +open my $NULL, '<', '/dev/null'; +sub loadIdentityFile($;$) { + my ($filename, $fh) = @_; + myprintf \*STDERR, "Decrypting identity file C<%s>", $filename if $CONFIG{debug}; + + require 'IPC/Open2.pm'; + my $pid = IPC::Open2::open2( (defined wantarray ? $fh : ">&".$fh->fileno) + , "<&".fileno($NULL) + , $CONFIG{gpg}, qw/-o - --decrypt --/, $filename) + or error "Can't fork: %s", $!; + my $str = do { local $/ = undef; <$fh> } if defined wantarray; + waitpid $pid, 0; + error "C<%s> exited with value %d", $CONFIG{gpg}, ($? >> 8) if $? and $? != -1; + close $fh; + + return unless defined wantarray; + + # the cleartext's charset is always UTF8 + require 'YAML/Tiny.pm'; # XXX use Tiny::YAML instead? + return YAML::Tiny::Load(decode_utf8 $str) if defined wantarray; +} + +# Dump and encrypt a form into the given filename. +sub saveIdentityFile($$) { + my ($form, $filename) = @_; + myprintf \*STDERR, "Saving identity file C<%s>", $filename if $CONFIG{debug}; + + require 'File/Copy.pm'; + require 'File/Path.pm'; + require 'File/Temp.pm'; + require 'IPC/Open2.pm'; + require 'YAML/Tiny.pm' if ref $form; # XXX use Tiny::YAML instead? + + # don't encrypt directly into the destination file so we don't + # end up with a messed up file if something goes wrong + my $outfh = File::Temp->new(SUFFIX => '.gpg', UNLINK => 0, TMPDIR => 1); + my $pid = IPC::Open2::open2( ">&".$outfh->fileno + , (ref $form ? my $infh : "<&".fileno($NULL)) + , $CONFIG{gpg}, qw/-o - --no-encrypt-to --recipient/, $CONFIG{keyid} + , '--encrypt', '--', (ref $form ? () : $form) + ) + or error "Can't fork: %s", $!; + + if (ref $form) { + $form->{fields} = [ grep defined, @{$form->{fields}} ]; # remove undefined fields + print $infh encode_utf8(YAML::Tiny::Dump($form)); # dump the form as UTF8 + close $infh; + } + waitpid $pid, 0; + error "C<%s> exited with value %d", $CONFIG{gpg}, ($? >> 8) if $? and $? != -1; + $outfh->close; + + my $parent_dir = $filename =~ s/\/[^\/]+$//r; + File::Path::make_path($parent_dir) unless -d $parent_dir; # create parent directories recursively + File::Copy::move($outfh->filename, $filename) or error "Can't move C<%s>: %s", $outfh->filename, $!; + + # TODO: git add $filename; git commit +} + +# Get the visible form list from the server, and croak if it's empty. +sub getForms() { + my $forms = sendCommand 'GETFORMS'; + error "No (visible) form found" unless @$forms; + return @$forms; +} + +# Guess which form is to be filled: take the first form with a password +# field if there are any, otherwise the first non-empty form. If the +# first argument is defined, only consider forms with a matching base +# URI. +sub findForm($@) { + my $myform = shift; + my @forms = @_; + + if (defined $myform) { + # ignore forms with non-matching action + @forms = map { $_->{action} =~ /\A\Q$myform->{baseURI}\E(?:\/.*)?\z/ ? $_ : undef } @forms; + my @formIdx = grepIdx { defined $_ } @forms; + error "No form found with action matching known base URI C<%s>", $myform->{baseURI} + unless @formIdx; + return $formIdx[0] if $#formIdx == 0; # single match + } + + my $idx = firstIdx { defined $_ and any {$_->{type} eq 'password'} @{$_->{fields}} } @forms; + $idx //= firstIdx { defined $_ and any {$_->{value} ne ''} @{$_->{fields}} } @forms; + error 'Dunno which form to '. (defined $myform ? 'fill' : 'import') unless defined $idx; + return $idx; +} + +# For a page with two or three passwords, try to guess from their value +# which are the old and new/confirm fields. Returns a list of indices +# (old, new, confirm). +sub guessPasswordPage(@) { + my ($pw0, $pw1, $pw2) = @_; + my ($idx0, $idx1, $idx2); + + if (!defined $pw2) { + if ($pw0->{value} eq $pw1->{value}) { + ($idx0, $idx1, $idx2) = (undef, 0, 1) + } + } + else { + if ($pw1->{value} eq $pw2->{value}) { + ($idx0, $idx1, $idx2) = (0, 1, 2); + } + elsif ($pw0->{value} eq $pw1->{value}) { + ($idx0, $idx1, $idx2) = (2, 0, 1); + } + elsif ($pw0->{value} eq $pw2->{value}) { + ($idx0, $idx1, $idx2) = (1, 0, 2); + } + } + return ($idx0, $idx1, $idx2); +} + +# Generate a (single) random password for the given fields, with the +# maximum possible length. +sub pwgen(@) { + my @fields = @_; + return unless @fields; + my $pwgen = $CONFIG{pwgen}; + + # see how long the password is allowed to be + my $l = $CONFIG{'max-password-length'}; + $l = min (map { my $x = $1 if defined $_->{maxLength} and $_->{maxLength} =~ /^(\d+)$/; + (defined $x and $x > 0 and $x < $l) ? $x : $l } @fields); + $pwgen =~ s/%d/$l/g; + myprintf "Generating $l-char long random value for field".($#fields > 0 ? '(s) ' : ' ') + .join(',', map {'C<%s>'} @fields), + map {$_->{name}} @fields; + + my @pw = `$pwgen`; + error "Can't exec C<%s>: %s", $pwgen, $! unless @pw; + chomp $pw[$#pw]; # remove the last \n, but keep the others + $_->{value} = join ('', @pw) foreach @fields; +} + +# Prompt a question with an optional defaut response. +sub prompt($;$) { + my ($prompt, $default) = @_; + $prompt .= " [$default]" if defined $default; + print $LOCALE->encode($prompt), " "; + + my $r = ; + die "\n" unless defined $r; + chomp $r; + return ($r eq '' and defined $default) ? $default : $LOCALE->decode($r); +} + +# Prompt a Yes/No question. +sub promptYN($;$) { + my $prompt = shift; + my $default = shift // 0; + + while (1) { + print $LOCALE->encode($prompt), " [", ($default ? 'Y/n' : 'y/N'), "] "; + my $r = ; + die "\n" unless defined $r; + chomp $r; + + if (lc $r eq 'y' or lc $r eq 'yes' or ($r eq '' and $default)) { + return 1 + } + elsif (lc $r eq 'n' or lc $r eq 'no' or ($r eq '' and !$default)) { + return 0 + } + myprintf \*STDERR, "Answer: C<%s> or C<%s>", 'y', 'n'; + } +} + +# Get the SHA-256 digest of the given file. +sub sha256_file($) { + my $filename = shift; + + require 'Digest.pm'; + my $sha256 = Digest->new('SHA-256'); + open my $fh, '<', $filename or error "Can't open C<%s>: %s", $filename, $!; + $sha256->addfile($fh); + close $fh; + return $sha256->digest; +} + + +####################################################################### + +GetOptions(\%CONFIG, qw/debug show-passwords|p socket|s=s help|? zero|0/) or usage(1); +usage(0) if $CONFIG{help}; + +# Load configuration +my $XDG_CONFIG_HOME = $ENV{XDG_CONFIG_HOME} // "$ENV{HOME}/.config"; +my $XDG_DATA_HOME = $ENV{XDG_DATA_HOME} // "$ENV{HOME}/.data"; +loadConfig "$XDG_CONFIG_HOME/icevault"; + +# Default options +$CONFIG{gpg} //= 'gpg'; +$CONFIG{socket} //= 'S.IceVault'; +$CONFIG{store} //= "$XDG_DATA_HOME/icevault/%s/%h/%i.gpg"; +$CONFIG{pwgen} //= 'pwgen -s -cyn %d'; +$CONFIG{'max-password-length'} //= 32; +$CONFIG{keyid} // error "Missing keyid in configuration file"; +error "C<%s> is not a 64-bits key ID or fingerprint", $CONFIG{keyid} + unless $CONFIG{keyid} =~ /^(?:(?:0x)?\p{AHex}{16}|\p{AHex}{40})$/; + +usage(1) unless @ARGV; +@ARGV = map { $LOCALE->decode($_) } @ARGV; +my $command = $ARGV[0] =~ /\A[A-Za-z0-9-]+:\/\//aa ? 'fill' : shift; + +# Process the commands +if ($command eq '_complete') { + # used internaly for auto-completion + usage(1) unless $#ARGV == 0; + my $delim = $CONFIG{zero} ? "\0" : "\n"; + print $LOCALE->encode($_), $delim foreach complete(shift @ARGV); + exit; +} + +elsif ($command eq '_geturi') { + # used internaly for auto-completion + usage(1) if @ARGV; + print $LOCALE->encode( &connect($CONFIG{socket}) ), "\n"; + sendCommand 'QUIT'; + exit; +} +elsif ($command eq 'insert') { + usage(1) unless $#ARGV < 1; + my $uri = &connect($CONFIG{socket}); + myprintf "Importing HTML form from URI C<%s>", $uri; + + my @forms = getForms(); + my $formIdx = findForm undef, @forms; + my $form = $forms[$formIdx]; + my @fill = map {undef} (0 .. $#{$form->{fields}}); + + if (defined $form->{action}) { + $form->{baseURI} = delete $form->{action}; + # perform minimal validation on the action URI (ensure that it + # doesn't contain non-graphical chars, " or /) + $form->{baseURI} =~ s/\A([A-Za-z0-9-]+:\/\/[^\P{Graph}:\/]+(?::\d+)?)(?:\/.*)?\z/$1/ + or error "Invalid form action: C<%s>", $form->{baseURI}; + my $scheme = $uri =~ s/:\/\/.*//r; + warning "Warning! Form action scheme C<%s> doesn't match the URI's", $scheme + unless $uri =~ /\A\Q$scheme\E:\/\//; + } + + my $id = shift; + unless (defined $id) { + # no identity was provided from command line: try to use the + # last non-empty text field before the first password, and + # fallback to the first non-empty text field altogether + my $pwIdx = firstIdx { $_->{type} eq 'password' } @{$form->{fields}}; + my $idx = first { $form->{fields}->[$_]->{value} ne '' and + ($form->{fields}->[$_]->{type} eq 'text' or $form->{fields}->[$_]->{type} eq 'email') + } ($pwIdx-1 .. 0) + if defined $pwIdx; + $idx //= firstIdx { $_->{value} ne '' and ($_->{type} eq 'text' or $_->{type} eq 'email') } @{$form->{fields}}; + $id = $form->{fields}->[$idx]->{value} if defined $idx; + while (1) { + # ask for confirmation + my $r = prompt 'Identity name?', $id; + if ($r !~ /\A[^\P{Print}\/]+\z/) { + myprintf \*STDERR, "Invalid identity: C<%s>", $r; + } + elsif (-e getIdentityFile "$uri/$r") { + myprintf \*STDERR, "Identity C<%s> already exists", "$uri/$r"; + } + else { + $id = $r; + last; + } + } + } + + my $filename = getIdentityFile "$uri/$id"; + error "Identity C<%s> already exists", "$uri/$id" if -e $filename; + + my @passIdx = grepIdx { $_->{type} eq 'password' } @{$form->{fields}}; + my @dontsave; + if ($#passIdx == 0) { # single password in the form + if ($form->{fields}->[$passIdx[0]]->{value} eq '') { + warning "Warning! Empty password for field C<%s>", $form->{fields}->[$passIdx[0]]->{name}; + exit 1 unless promptYN "Continue?"; + } + } + elsif ($#passIdx < 3) { # 2 or 3 passwords in the form + my ($idx0, $idx1, $idx2) = map {defined $_ ? $passIdx[$_] : undef} + guessPasswordPage(@{$form->{fields}}[@passIdx]); + my ($pw0, $pw1, $pw2) = map {defined $_ ? $form->{fields}->[$_] : undef} + ($idx0, $idx1, $idx2); + + if (defined $idx1 and defined $idx2) { + # it can also be a password changing page when !defined + # $pw0, but it doesn't matter here as all values are the + # same + print STDERR "Assuming a ".(defined $pw0 ? 'password changing' : 'signup')." page\n"; + if ($pw1->{value} eq '') { # generate a password for the two fields + pwgen ($pw1, $pw2); + $fill[$_] = $form->{fields}->[$_]->{value} foreach ($idx1, $idx2); + } + + if (defined $pw0) { + # keep only the first field, but use the second field's value + $pw0->{value} = $pw1->{value}; + push @dontsave, $idx1, $idx2; + } else { + # keep only the first field + push @dontsave, $idx2; + } + + } + } + elsif ($#passIdx >= 3) { + print STDERR "Assuming all ".scalar(@passIdx)." passwords are independent\n"; + foreach my $i (@passIdx) { + next unless $form->{fields}->[$i]->{value} eq ''; + pwgen $form->{fields}->[$i]; + $fill[$i] = $form->{fields}->[$i]->{value}; + } + } + + fill $formIdx, $form, @fill; + sendCommand 'QUIT'; + + undef @{$form->{fields}}[@dontsave] if @dontsave; # remove the field we don't want to save + myprintf "Saving identity C<%s>", "$uri/$id"; + saveIdentityFile $form, $filename; +} + +elsif ($command eq 'fill') { + usage(1) unless $#ARGV == 0; + my $id = shift; + my $filename = getIdentityFile $id; + error "No such identity C<%s>", $id unless -f $filename; + + my $uri = &connect($CONFIG{socket}); + error "Possible phishing attempt! (URI C<%s> doesn't match identity.) Aborting.", $uri + unless $id =~ /\A\Q$uri\E(?:\/.*)\z/; + + # get the list of forms and load the known form from disk + my @forms = getForms(); + my $myform = loadIdentityFile $filename; + my $formIdx = findForm $myform, @forms; + my $form = $forms[$formIdx]; + my @fill = map {undef} (0 .. $#{$form->{fields}}); + + # map each field name to the list of its indices; this allows + # multivalued names + my %fields = groupByName @{$form->{fields}}; + my %myfields = groupByName @{$myform->{fields}}; + my $changed = 0; + + my @mypassIdx = grepIdx { $_->{type} eq 'password' } @{$myform->{fields}}; + my @passIdx = grepIdx { $_->{type} eq 'password' } @{$form->{fields}}; + if ($#mypassIdx == 0 and $#passIdx == 0 and + $#{$myfields{$myform->{fields}->[$mypassIdx[0]]->{name}}} == 0 and + $#{$fields{$form->{fields}->[$passIdx[0]]->{name}}} == 0) { + # there is a single password on both the know form and that we + # want to fill, and both field names are unique in these forms: + # assume this is the password to be filled regardless of the + # name + + my $mypass = $myform->{fields}->[$mypassIdx[0]]; + my $pass = $form->{fields}->[$passIdx[0]]; + delete $myfields{$mypass->{name}}; # don't process these names later + delete $fields{$pass->{name}}; + + if ($mypass->{name} ne $pass->{name}) { # use the new name + myprintf "Renaming field C<%s> as C<%s>", + $mypass->{name}, $pass->{name}; + $mypass->{name} = $pass->{name}; + $changed = 1; + } + + if ($pass->{value} eq '') { # fill the password with the known value + $fill[$passIdx[0]] = $mypass->{value}; + } + elsif ($mypass->{value} ne $pass->{value}) { # update the password + myprintf "Updating field C<%s> to C<%s> (former value: C<%s>)", + $mypass->{name}, safeValue($pass), safeValue($mypass); + $mypass->{value} = $pass->{value}; + $changed = 1; + } + } + elsif ($#mypassIdx == 0 and $#passIdx > 0 and $#passIdx < 3) { + # there is a single known password, but two or three fields to + # fill: probably a password changing page + my $mypass = $myform->{fields}->[$mypassIdx[0]]; + my ($idx0, $idx1, $idx2) = map {defined $_ ? $passIdx[$_] : undef} + guessPasswordPage(@{$form->{fields}}[@passIdx]); + my ($pw0, $pw1, $pw2) = map {defined $_ ? $form->{fields}->[$_] : undef} + ($idx0, $idx1, $idx2); + + if (defined $pw1 and defined $pw2) { + print STDERR "Assuming a password changing page\n"; + if ($pw1->{value} eq '') { + pwgen ($pw1, $pw2); + $fill[$_] = $form->{fields}->[$_]->{value} foreach ($idx1, $idx2); + } + + # fill the first password field with the known value + $fill[$idx0] = $mypass->{value} if defined $idx0 and $pw0->{value} eq ''; + + if ($mypass->{value} ne $pw1->{value}) { + # update the known password with the new value + $mypass->{value} = $pw1->{value}; + $changed = 1; + } + + # don't process these fields later + &delete($mypassIdx[0], $myfields{$mypass->{name}}); + &delete($_, $fields{$form->{fields}->[$_]->{name}}) foreach grep defined, ($idx0, $idx1, $idx2); + } + } + + # walk through each names in both %myfields and %fields, and fill + # the values in the order they are found + foreach my $name (keys %myfields) { + next unless exists $fields{$name}; + while (@{$myfields{$name}} and @{$fields{$name}}) { + my $myidx = shift @{$myfields{$name}}; + my $idx = shift @{$fields{$name}}; + next unless defined $myidx and defined $idx; # was taken care of before + if ($form->{fields}->[$idx]->{value} eq '' and $myform->{fields}->[$myidx]->{value} ne '') { + # fill with the known value + $fill[$idx] = $myform->{fields}->[$myidx]->{value}; + } + elsif ($myform->{fields}->[$myidx]->{value} ne $form->{fields}->[$idx]->{value}) { + # update the known value with that found in the page + myprintf "Updating field C<%s> to C<%s> (former value: C<%s>)", + $myform->{fields}->[$myidx]->{name}, + safeValue($form->{fields}->[$idx]), + safeValue($myform->{fields}->[$myidx]); + $myform->{fields}->[$myidx]->{value} = $form->{fields}->[$idx]->{value}; + $changed = 1; + } + } + } + # add the fields that were found in the page, but not in our form + foreach my $name (keys %fields) { + my @fieldIdx = grep defined, @{$fields{$name}}; + my $i; + for ($i = $#fieldIdx; $i >= 0; $i--) { + last unless $form->{fields}->[$i]->{value} eq ''; + } + # don't store empty values (unless a later value is non-empty, + # to preserve the order) + @fieldIdx = @fieldIdx[(0 .. $i)] if $i >= 0; + next unless @fieldIdx and $i >= 0; + myprintf "Adding field C<%s>, value".($#fieldIdx > 0 ? '(s) ' : ' '). + join(',', map {'C<%s>'} @fieldIdx), + $name, map {safeValue $form->{fields}->[$_]} @fieldIdx; + push @{$myform->{fields}}, @{$form->{fields}}[@fieldIdx]; + $changed = 1; + } + foreach my $name (keys %myfields) { + my @fieldIdx = grep defined, @{$myfields{$name}}; + next unless @fieldIdx; + myprintf "Deleting field C<%s>, value".($#fieldIdx > 0 ? '(s) ' : ' '). + join(',', map {'C<%s>'} @fieldIdx), + $name, map {safeValue $myform->{fields}->[$_]} @fieldIdx; + undef $myform->{fields}->[$_] foreach @fieldIdx; + $changed = 1; + } + + fill $formIdx, $form, @fill; + sendCommand 'QUIT'; + + if ($changed) { + my $r = promptYN "Save changes?", 0; + saveIdentityFile ($myform, $filename) if $r; + } +} + +elsif ($command eq 'dump') { + usage(1) unless $#ARGV == 0; + my $id = shift; + my $filename = getIdentityFile $id; + error "No such identity C<%s>", $id unless -f $filename; + + my $form = loadIdentityFile $filename; + $_->{value} = safeValue($_) foreach @{$form->{fields}}; # redact the passwords + + my $str = YAML::Tiny::Dump($form); + print STDOUT (defined $LOCALE ? $LOCALE->encode($str) : $str) +} + +elsif ($command eq 'edit') { + usage(1) unless $#ARGV == 0; + my $id = shift; + my $filename = getIdentityFile $id; + error "No such identity C<%s>", $id unless -f $filename; + require 'File/Copy.pm'; + require 'File/Temp.pm'; + + error "C<%s> is not set", '$EDITOR' unless defined $ENV{EDITOR}; + $ENV{EDITOR} =~ /\A(\p{Print}+)\z/ or error "Insecure C<%s>", "\$EDITOR"; + my $EDITOR = $1; # untaint $EDITOR + + my $fh = File::Temp->new(SUFFIX => '.yaml', UNLINK => 0, TMPDIR => 1); + END { unlink $fh->filename if defined $fh; } # never leave cleartext lying around + loadIdentityFile $filename, $fh; + + my $h = sha256_file $fh->filename; + system $EDITOR, $fh->filename; + error "C<%s> exited with value %d", $EDITOR, ($? >> 8) if $? and $? != -1; + + if ($h eq sha256_file $fh->filename) { + print "No modification made\n"; + } + else { + myprintf "Saving user changes for identity C<%s>", $id; + saveIdentityFile( $fh->filename, $filename); + } +} + +elsif ($command eq 'clip') { + usage(1) unless $#ARGV == 0; + my $id = shift; + my $filename = getIdentityFile $id; + error "No such identity C<%s>", $id unless -f $filename; + + my $form = loadIdentityFile $filename; + my $pw = first { $_->{type} eq 'password' } @{$form->{fields}}; + error "No password found in C<%s>", $id unless defined $pw; + + my $pid = open my $fh, '|-', qw/xclip -loop 1 -selection clipboard/ + or error "Can't fork: %s", $!; + print $fh encode_utf8($pw->{value}); + close $fh; + waitpid $pid, 0; + error "C<%s> exited with value %d", 'xclip', ($? >> 8) if $? and $? != -1; + exit 0; +} + +elsif ($command eq 'ls') { + usage(1) if $#ARGV > 0; + my $prefix = shift @ARGV; + my @matches = complete $prefix // '', 1; + + if (!defined $prefix) { + s/:\/\/.*// foreach @matches; + } elsif ($prefix =~ /\A[A-Za-z0-9-]+:\/\/[^\P{Graph}:\/]+(?::\d+)?\/[^\P{Print}\/]+\z/) { + @matches = grep /\A\Q$prefix\E\z/, @matches; + } elsif ($prefix =~ /\A([A-Za-z0-9-]+:\/\/[^\P{Graph}\/]+)\/?\z/) { + my $x = $1; + @matches = grep defined, map { !s/\A\Q$x\E\/// ? undef : $_ } @matches; + } elsif ($prefix =~ /\A([A-Za-z0-9-]+)(:\/{0,2})?\z/) { + my $x = $1; + @matches = grep defined, map { !s/\A\Q$x\E:\/\/// ? undef : + !s/\/[^\P{Print}\/]+\z// ? undef : $_ } @matches; + } else { + @matches = (); + } + error "No such identity C<%s>", $prefix // '' unless @matches; + + my $delim = $CONFIG{zero} ? "\0" : "\n"; + my %matches = map {($_ => 1)} @matches; + print $LOCALE->encode($_), $delim foreach sort keys %matches; +} + +else { + myprintf "Unknown command: C<%s>", $command; + usage(1); +} -- cgit v1.2.3