[PATCH v5 3/5] clone: do not include authentication data in guessed dir
- From
Patrick Steinhardt <ps@pks.im>
- Date
- Aug 10, 2015, 15:48 UTC
- Message-ID
- <1439221705-20336-4-git-send-email-ps@pks.im>
- In-Reply-To
- <1439221705-20336-1-git-send-email-ps@pks.im>
If the URI contains authentication data and the URI's path component is empty we fail to guess a sensible directory name. E.g. cloning a repository 'ssh://user:password@example.com/' we guess a directory name 'password@example.com' where we would want the hostname only, e.g. 'example.com'.
The naive way of just adding '@' as a path separator would break cloning repositories like 'foo/bar@baz.git' (which would currently become 'bar@baz' but would then become 'baz' only). Instead fix this by first dropping the scheme and then greedily scanning for an '@' sign until we find the first path separator.
Signed-off-by: Patrick Steinhardt <ps@pks.im> --- builtin/clone.c | 41 +++++++++++++++++++++++++++++++---------- t/t5603-clone-dirname.sh | 4 ++-- 2 files changed, 33 insertions(+), 12 deletions(-)
diff --git a/builtin/clone.c b/builtin/clone.c index bf45199..da51792 100644 --- a/builtin/clone.c +++ b/builtin/clone.c @@ -146,30 +146,51 @@ static char *get_repo_path(const char *repo, int *is_bundle) static char *guess_dir_name(const char *repo, int is_bundle, int is_bare) { - const char *end = repo + strlen(repo), *start; + const char *end = repo + strlen(repo), *start, *ptr; size_t len; char *dir; /* + * Skip scheme. + */ + start = strstr(repo, "://"); + if (start == NULL) + start = repo; + else + start += 3; + + /* + * Skip authentication data. The stripping does happen + * greedily, such that we strip up to the last '@' inside + * the host part. + */ + for (ptr = start; ptr < end && !is_dir_sep(*ptr); ptr++) { + if (*ptr == '@') + start = ptr + 1; + } + + /* * Strip trailing spaces, slashes and /.git */ - while (repo < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) + while (start < end && (is_dir_sep(end[-1]) || isspace(end[-1]))) end--; - if (end - repo > 5 && is_dir_sep(end[-5]) && + if (end - start > 5 && is_dir_sep(end[-5]) && !strncmp(end - 4, ".git", 4)) { end -= 5; - while (repo < end && is_dir_sep(end[-1])) + while (start < end && is_dir_sep(end[-1])) end--; } /* - * Find last component, but be prepared that repo could have - * the form "remote.example.com:foo.git", i.e. no slash - * in the directory part. + * Find last component. To remain backwards compatible we + * also regard colons as path separators, such that + * cloning a repository 'foo:bar.git' would result in a + * directory 'bar' being guessed. */ - start = end; - while (repo < start && !is_dir_sep(start[-1]) && start[-1] != ':') - start--; + ptr = end; + while (start < ptr && !is_dir_sep(ptr[-1]) && ptr[-1] != ':') + ptr--; + start = ptr; /* * Strip .{bundle,git}. diff --git a/t/t5603-clone-dirname.sh b/t/t5603-clone-dirname.sh index 10f5d09..a9aba72 100755 --- a/t/t5603-clone-dirname.sh +++ b/t/t5603-clone-dirname.sh @@ -74,11 +74,11 @@ test_clone_dir host:foo/.git/// foo # omitting the path should default to the hostname test_clone_dir ssh://host/ host test_clone_dir ssh://host:1234/ host fail -test_clone_dir ssh://user@host/ host fail +test_clone_dir ssh://user@host/ host test_clone_dir host:/ host fail # auth materials should be redacted -test_clone_dir ssh://user:password@host/ host fail +test_clone_dir ssh://user:password@host/ host test_clone_dir ssh://user:password@host:1234/ host fail test_clone_dir ssh://user:passw@rd@host:1234/ host fail test_clone_dir user@host:/ host fail
-- 2.5.0