The documentation declares following identity format:
(<name> SP)? LT <email> GT
where name is any string without LF and LT characters.
But fast-import just accepts any string up to first GT
instead of checking the whole format, and moreover just
writes it as is to the commit object.
git-fsck checks for [^<\n]* <[^<>\n]*> format. Note that the
space is mandatory. And the space quirk is already handled via
extending the string to the left when needed.
Modify fast-import input identity format to a slightly stricter
one - deny LF, LT and GT in both <name> and <email>. And check
for it.
This is stricter then git-fsck as fsck accepts "Name> <email>"
currently, but soon fsck check will be adjusted likewise.
Signed-off-by: Dmitry Ivankov <divanorama@xxxxxxxxx>
---
Documentation/git-fast-import.txt | 4 ++--
fast-import.c | 29 +++++++++++++++++------------
t/t9300-fast-import.sh | 10 +++++-----
3 files changed, 24 insertions(+), 19 deletions(-)
diff --git a/Documentation/git-fast-import.txt b/Documentation/git-fast-import.txt
index 2969388..ba16889 100644
--- a/Documentation/git-fast-import.txt
+++ b/Documentation/git-fast-import.txt
@@ -425,8 +425,8 @@ Here `<name>` is the person's display name (for example
(``cm@xxxxxxxxxxx''). `LT` and `GT` are the literal less-than (\x3c)
and greater-than (\x3e) symbols. These are required to delimit
the email address from the other fields in the line. Note that
-`<name>` is free-form and may contain any sequence of bytes, except
-`LT` and `LF`. It is typically UTF-8 encoded.
+`<name>` and `<email>` are free-form and may contain any sequence
+of bytes, except `LT`, `GT` and `LF`. `<name>` is typically UTF-8 encoded.
The time of the change is specified by `<when>` using the date format
that was selected by the \--date-format=<fmt> command line option.
diff --git a/fast-import.c b/fast-import.c
index ed1f7c9..6d491b9 100644
--- a/fast-import.c
+++ b/fast-import.c
@@ -1969,7 +1969,7 @@ static int validate_raw_date(const char *src, char *result, int maxlen)
static char *parse_ident(const char *buf)
{
- const char *gt;
+ const char *ltgt;
size_t name_len;
char *ident;
@@ -1977,28 +1977,33 @@ static char *parse_ident(const char *buf)
if (*buf == '<')
--buf;
- gt = strrchr(buf, '>');
- if (!gt)
+ ltgt = buf + strcspn(buf, "<>");
+ if (*ltgt != '<')
+ die("Missing < in ident string: %s", buf);
+ if (ltgt != buf && ltgt[-1] != ' ')
+ die("Missing space before < in ident string: %s", buf);
+ ltgt = ltgt + 1 + strcspn(ltgt + 1, "<>");
+ if (*ltgt != '>')
die("Missing > in ident string: %s", buf);
- gt++;
- if (*gt != ' ')
+ ltgt++;
+ if (*ltgt != ' ')
die("Missing space after > in ident string: %s", buf);
- gt++;
- name_len = gt - buf;
+ ltgt++;
+ name_len = ltgt - buf;
ident = xmalloc(name_len + 24);
strncpy(ident, buf, name_len);
switch (whenspec) {
case WHENSPEC_RAW:
- if (validate_raw_date(gt, ident + name_len, 24) < 0)
- die("Invalid raw date \"%s\" in ident: %s", gt, buf);
+ if (validate_raw_date(ltgt, ident + name_len, 24) < 0)
+ die("Invalid raw date \"%s\" in ident: %s", ltgt, buf);
break;
case WHENSPEC_RFC2822:
- if (parse_date(gt, ident + name_len, 24) < 0)
- die("Invalid rfc2822 date \"%s\" in ident: %s", gt, buf);
+ if (parse_date(ltgt, ident + name_len, 24) < 0)
+ die("Invalid rfc2822 date \"%s\" in ident: %s", ltgt, buf);
break;
case WHENSPEC_NOW:
- if (strcmp("now", gt))
+ if (strcmp("now", ltgt))
die("Date in ident must be 'now': %s", buf);
datestamp(ident + name_len, 24);
break;
diff --git a/t/t9300-fast-import.sh b/t/t9300-fast-import.sh
index 8f3938c..e53ca90 100755
--- a/t/t9300-fast-import.sh
+++ b/t/t9300-fast-import.sh
@@ -370,7 +370,7 @@ data <<COMMIT
empty commit
COMMIT
INPUT_END
-test_expect_failure 'B: fail on invalid committer (1)' '
+test_expect_success 'B: fail on invalid committer (1)' '
test_must_fail git fast-import <input
'
git update-ref -d refs/heads/invalid-committer || true
@@ -382,7 +382,7 @@ data <<COMMIT
empty commit
COMMIT
INPUT_END
-test_expect_failure 'B: fail on invalid committer (2)' '
+test_expect_success 'B: fail on invalid committer (2)' '
test_must_fail git fast-import <input
'
git update-ref -d refs/heads/invalid-committer || true
@@ -394,7 +394,7 @@ data <<COMMIT
empty commit
COMMIT
INPUT_END
-test_expect_failure 'B: fail on invalid committer (3)' '
+test_expect_success 'B: fail on invalid committer (3)' '
test_must_fail git fast-import <input
'
git update-ref -d refs/heads/invalid-committer || true
@@ -406,7 +406,7 @@ data <<COMMIT
empty commit
COMMIT
INPUT_END
-test_expect_failure 'B: fail on invalid committer (4)' '
+test_expect_success 'B: fail on invalid committer (4)' '
test_must_fail git fast-import <input
'
git update-ref -d refs/heads/invalid-committer || true
@@ -418,7 +418,7 @@ data <<COMMIT
empty commit
COMMIT
INPUT_END
-test_expect_failure 'B: fail on invalid committer (5)' '
+test_expect_success 'B: fail on invalid committer (5)' '
test_must_fail git fast-import <input
'
git update-ref -d refs/heads/invalid-committer || true
--
1.7.3.4
--
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