cvsserver: Handle 'cvs login'

Since this is a trivial variation of the general pserver
authentication, there is really no reason not to support
it.

Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>

git-cvsserver.perl

@@ -95,9 +95,10 @@ $state->{method} = 'ext';
 if (@ARGV && $ARGV[0] eq 'pserver') {
     $state->{method} = 'pserver';
     my $line = <STDIN>; chomp $line;
-    unless( $line eq 'BEGIN AUTH REQUEST') {
+    unless( $line =~ /^BEGIN (AUTH|VERIFICATION) REQUEST$/) {
        die "E Do not understand $line - expecting BEGIN AUTH REQUEST\n";
     }
+    my $request = $1;
     $line = <STDIN>; chomp $line;
     req_Root('root', $line) # reuse Root
        or die "E Invalid root $line \n";
@@ -109,10 +110,11 @@ if (@ARGV && $ARGV[0] eq 'pserver') {
     }
     $line = <STDIN>; chomp $line;    # validate the password?
     $line = <STDIN>; chomp $line;
-    unless ($line eq 'END AUTH REQUEST') {
+    unless ($line eq "END $request REQUEST") {
-       die "E Do not understand $line -- expecting END AUTH REQUEST\n";
+       die "E Do not understand $line -- expecting END $request REQUEST\n";
     }
     print "I LOVE YOU\n";
+    exit if $request eq 'VERIFICATION'; # cvs login
     # and now back to our regular programme...
 }
 

t/t9400-git-cvsserver-server.sh

@@ -67,6 +67,22 @@ git
 END AUTH REQUEST
 EOF
 
+cat >login-anonymous <<EOF
+BEGIN VERIFICATION REQUEST
+$SERVERDIR
+anonymous
+
+END VERIFICATION REQUEST
+EOF
+
+cat >login-git <<EOF
+BEGIN VERIFICATION REQUEST
+$SERVERDIR
+git
+
+END VERIFICATION REQUEST
+EOF
+
 test_expect_success 'pserver authentication' \
   'cat request-anonymous | git-cvsserver pserver >log 2>&1 &&
    tail -n1 log | grep -q "^I LOVE YOU$"'
@@ -80,6 +96,19 @@ test_expect_success 'pserver authentication failure (non-anonymous user)' \
    fi &&
    tail -n1 log | grep -q "^I HATE YOU$"'
 
+test_expect_success 'pserver authentication (login)' \
+  'cat login-anonymous | git-cvsserver pserver >log 2>&1 &&
+   tail -n1 log | grep -q "^I LOVE YOU$"'
+
+test_expect_success 'pserver authentication failure (login/non-anonymous user)' \
+  'if cat login-git | git-cvsserver pserver >log 2>&1
+   then
+       false
+   else
+       true
+   fi &&
+   tail -n1 log | grep -q "^I HATE YOU$"'
+
 
 #--------------
 # CONFIG TESTS