Thread (31 messages) flat view 31 messages, 3 authors, 2016-06-15
STALE3734d

Revision v4 of 2 in this series.

Revisions (2)
  1. v3 [diff vs current]
  2. v4 current

[PATCH v4 1/3] clone: do not include authentication data in guessed dir

From: Patrick Steinhardt <hidden>
Date: 2016-06-15 23:06:05
Subsystem: the rest · Maintainer: Linus Torvalds

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'.

Fix this by first skipping authentication data.

Signed-off-by: Patrick Steinhardt <redacted>
---
 builtin/clone.c          | 40 ++++++++++++++++++++++++++++++----------
 t/t5603-clone-dirname.sh |  3 ++-
 2 files changed, 32 insertions(+), 11 deletions(-)
diff --git a/builtin/clone.c b/builtin/clone.c
index bf45199..3ddf8b9 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -146,30 +146,50 @@ 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.
+	 */
+	ptr = start;
+	while (ptr < end && !is_dir_sep(*ptr) && *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 46725b9..3a454f9 100755
--- a/t/t5603-clone-dirname.sh
+++ b/t/t5603-clone-dirname.sh
@@ -64,6 +64,7 @@ test_clone_dir ssh://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 ssh://user:password@host/ host
 
 test_done
-- 
2.5.0
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