mktag.c: tweak validation of tagger field and adjust test script

Update the verify_tag() function to remove an unnecessary test, and add
additional check for angle brackets in the name and email field, and
spaces in the email field. The timestamp and timezone sections are made
more straight forward by using strspn().

Signed-off-by: Brandon Casey <casey@nrlssc.navy.mil>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 72 insertions, 16 deletions

diff --git a/t/t3800-mktag.sh b/t/t3800-mktag.sh
index 8a27400..df1fd6f 100755
--- a/t/t3800-mktag.sh
+++ b/t/t3800-mktag.sh
@@ -180,7 +180,7 @@ check_verify_failure '"tagger" line label check #2' \
 	'^error: char70: could not find "tagger "$'
 
 ############################################################
-# 13. detect missing tag author name
+# 13. disallow missing tag author name
 
 cat >tag.sig <<EOF
 object $head
@@ -191,11 +191,11 @@ tagger  <> 0 +0000
 This is filler
 EOF
 
-check_verify_failure 'detect missing tag author name' \
+check_verify_failure 'disallow missing tag author name' \
 	'^error: char77: missing tagger name$'
 
 ############################################################
-# 14. detect missing tag author name
+# 14. disallow missing tag author name
 
 cat >tag.sig <<EOF
 object $head
@@ -206,8 +206,8 @@ tagger T A Gger <
 
 EOF
 
-check_verify_failure 'detect malformed tagger' \
-	'^error: char77: malformed tagger$'
+check_verify_failure 'disallow malformed tagger' \
+	'^error: char77: malformed tagger field$'
 
 ############################################################
 # 15. allow empty tag email
@@ -225,7 +225,21 @@ test_expect_success \
     'git-mktag <tag.sig >.git/refs/tags/mytag 2>message'
 
 ############################################################
-# 16. detect missing tag timestamp
+# 16. disallow spaces in tag email
+
+cat >tag.sig <<EOF
+object $head
+type commit
+tag mytag
+tagger T A Gger <tag ger@example.com> 0 +0000
+
+EOF
+
+check_verify_failure 'disallow spaces in tag email' \
+	'^error: char77: malformed tagger field$'
+
+############################################################
+# 17. disallow missing tag timestamp
 
 cat >tag.sig <<EOF
 object $head
@@ -235,11 +249,11 @@ tagger T A Gger <tagger@example.com>
 
 EOF
 
-check_verify_failure 'detect missing tag timestamp' \
-	'^error: char107: malformed tag timestamp$'
+check_verify_failure 'disallow missing tag timestamp' \
+	'^error: char107: missing tag timestamp$'
 
 ############################################################
-# 17. detect invalid tag timestamp
+# 18. detect invalid tag timestamp1
 
 cat >tag.sig <<EOF
 object $head
@@ -249,11 +263,25 @@ tagger T A Gger <tagger@example.com> Tue Mar 25 15:47:44 2008
 
 EOF
 
-check_verify_failure 'detect invalid tag timestamp' \
-	'^error: char108: malformed tag timestamp$'
+check_verify_failure 'detect invalid tag timestamp1' \
+	'^error: char107: missing tag timestamp$'
 
 ############################################################
-# 18. detect invalid tag timezone
+# 19. detect invalid tag timestamp2
+
+cat >tag.sig <<EOF
+object $head
+type commit
+tag mytag
+tagger T A Gger <tagger@example.com> 2008-03-31T12:20:15-0500
+
+EOF
+
+check_verify_failure 'detect invalid tag timestamp2' \
+	'^error: char111: malformed tag timestamp$'
+
+############################################################
+# 20. detect invalid tag timezone1
 
 cat >tag.sig <<EOF
 object $head
@@ -263,11 +291,39 @@ tagger T A Gger <tagger@example.com> 1206478233 GMT
 
 EOF
 
-check_verify_failure 'detect invalid tag timezone' \
+check_verify_failure 'detect invalid tag timezone1' \
+	'^error: char118: malformed tag timezone$'
+
+############################################################
+# 21. detect invalid tag timezone2
+
+cat >tag.sig <<EOF
+object $head
+type commit
+tag mytag
+tagger T A Gger <tagger@example.com> 1206478233 +  30
+
+EOF
+
+check_verify_failure 'detect invalid tag timezone2' \
+	'^error: char118: malformed tag timezone$'
+
+############################################################
+# 22. detect invalid tag timezone3
+
+cat >tag.sig <<EOF
+object $head
+type commit
+tag mytag
+tagger T A Gger <tagger@example.com> 1206478233 -1430
+
+EOF
+
+check_verify_failure 'detect invalid tag timezone3' \
 	'^error: char118: malformed tag timezone$'
 
 ############################################################
-# 19. detect invalid header entry
+# 23. detect invalid header entry
 
 cat >tag.sig <<EOF
 object $head
@@ -282,7 +338,7 @@ check_verify_failure 'detect invalid header entry' \
 	'^error: char124: trailing garbage in tag header$'
 
 ############################################################
-# 20. create valid tag
+# 24. create valid tag
 
 cat >tag.sig <<EOF
 object $head
@@ -297,7 +353,7 @@ test_expect_success \
     'git-mktag <tag.sig >.git/refs/tags/mytag 2>message'
 
 ############################################################
-# 21. check mytag
+# 25. check mytag
 
 test_expect_success \
     'check mytag' \