Skip to content

Commit

Permalink
Browse files Browse the repository at this point in the history
http-backend: respect existing GIT_COMMITTER_* variables
The http-backend program sets default GIT_COMMITTER_NAME and
GIT_COMMITTER_EMAIL variables based on the REMOTE_USER and
REMOTE_ADDR variables provided by the webserver. However, it
unconditionally overwrites any existing GIT_COMMITTER
variables, which may have been customized by site-specific
code in the webserver (or in a script wrapping http-backend).

Let's leave those variables intact if they already exist,
assuming that any such configuration was intentional. There
is a slight chance of a regression if somebody has set
GIT_COMMITTER_* for the entire webserver, not intending it
to leak through http-backend. We could protect against this
by passing the information in alternate variables.  However,
it seems unlikely that anyone will care about that
regression, and there is value in the simplicity of using
the common variable names that are used elsewhere in git.

While we're tweaking the environment-handling in
http-backend, let's switch it to use argv_array to handle
the list of variables. That makes the memory management much
simpler.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
  • Loading branch information
peff authored and gitster committed Mar 30, 2012
1 parent 8ced9c9 commit e32a458
Show file tree
Hide file tree
Showing 3 changed files with 37 additions and 13 deletions.
22 changes: 9 additions & 13 deletions http-backend.c
Expand Up @@ -7,6 +7,7 @@
#include "run-command.h"
#include "string-list.h"
#include "url.h"
#include "argv-array.h"

static const char content_type[] = "Content-Type";
static const char content_length[] = "Content-Length";
Expand Down Expand Up @@ -317,8 +318,7 @@ static void run_service(const char **argv)
const char *encoding = getenv("HTTP_CONTENT_ENCODING");
const char *user = getenv("REMOTE_USER");
const char *host = getenv("REMOTE_ADDR");
char *env[3];
struct strbuf buf = STRBUF_INIT;
struct argv_array env = ARGV_ARRAY_INIT;
int gzipped_request = 0;
struct child_process cld;

Expand All @@ -332,17 +332,15 @@ static void run_service(const char **argv)
if (!host || !*host)
host = "(none)";

memset(&env, 0, sizeof(env));
strbuf_addf(&buf, "GIT_COMMITTER_NAME=%s", user);
env[0] = strbuf_detach(&buf, NULL);

strbuf_addf(&buf, "GIT_COMMITTER_EMAIL=%s@http.%s", user, host);
env[1] = strbuf_detach(&buf, NULL);
env[2] = NULL;
if (!getenv("GIT_COMMITTER_NAME"))
argv_array_pushf(&env, "GIT_COMMITTER_NAME=%s", user);
if (!getenv("GIT_COMMITTER_EMAIL"))
argv_array_pushf(&env, "GIT_COMMITTER_EMAIL=%s@http.%s",
user, host);

memset(&cld, 0, sizeof(cld));
cld.argv = argv;
cld.env = (const char *const *)env;
cld.env = env.argv;
if (gzipped_request)
cld.in = -1;
cld.git_cmd = 1;
Expand All @@ -357,9 +355,7 @@ static void run_service(const char **argv)

if (finish_command(&cld))
exit(1);
free(env[0]);
free(env[1]);
strbuf_release(&buf);
argv_array_clear(&env);
}

static int show_text_ref(const char *name, const unsigned char *sha1,
Expand Down
7 changes: 7 additions & 0 deletions t/lib-httpd/apache.conf
Expand Up @@ -52,8 +52,15 @@ Alias /auth/ www/auth/
<Location /smart_noexport/>
SetEnv GIT_EXEC_PATH ${GIT_EXEC_PATH}
</Location>
<Location /smart_custom_env/>
SetEnv GIT_EXEC_PATH ${GIT_EXEC_PATH}
SetEnv GIT_HTTP_EXPORT_ALL
SetEnv GIT_COMMITTER_NAME "Custom User"
SetEnv GIT_COMMITTER_EMAIL custom@example.com
</Location>
ScriptAlias /smart/ ${GIT_EXEC_PATH}/git-http-backend/
ScriptAlias /smart_noexport/ ${GIT_EXEC_PATH}/git-http-backend/
ScriptAlias /smart_custom_env/ ${GIT_EXEC_PATH}/git-http-backend/
<Directory ${GIT_EXEC_PATH}>
Options None
</Directory>
Expand Down
21 changes: 21 additions & 0 deletions t/t5541-http-push.sh
Expand Up @@ -30,6 +30,7 @@ test_expect_success 'setup remote repository' '
git clone --bare test_repo test_repo.git &&
cd test_repo.git &&
git config http.receivepack true &&
git config core.logallrefupdates true &&
ORIG_HEAD=$(git rev-parse --verify HEAD) &&
cd - &&
mv test_repo.git "$HTTPD_DOCUMENT_ROOT_PATH"
Expand Down Expand Up @@ -222,5 +223,25 @@ test_expect_success TTY 'quiet push' '
test_cmp /dev/null output
'

test_expect_success 'http push gives sane defaults to reflog' '
cd "$ROOT_PATH"/test_repo_clone &&
test_commit reflog-test &&
git push "$HTTPD_URL"/smart/test_repo.git &&
git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git" \
log -g -1 --format="%gn <%ge>" >actual &&
echo "anonymous <anonymous@http.127.0.0.1>" >expect &&
test_cmp expect actual
'

test_expect_success 'http push respects GIT_COMMITTER_* in reflog' '
cd "$ROOT_PATH"/test_repo_clone &&
test_commit custom-reflog-test &&
git push "$HTTPD_URL"/smart_custom_env/test_repo.git &&
git --git-dir="$HTTPD_DOCUMENT_ROOT_PATH/test_repo.git" \
log -g -1 --format="%gn <%ge>" >actual &&
echo "Custom User <custom@example.com>" >expect &&
test_cmp expect actual
'

stop_httpd
test_done

0 comments on commit e32a458

Please sign in to comment.