#include "submodule.h"
#include "string-list.h"
#include "sha1-array.h"
+#include "sigchain.h"
/* rsync support */
return run_command(&rsync);
}
-static int write_one_ref(const char *name, const unsigned char *sha1,
- int flags, void *data)
+static int write_one_ref(const char *name, const struct object_id *oid,
+ int flags, void *data)
{
struct strbuf *buf = data;
int len = buf->len;
- FILE *f;
/* when called via for_each_ref(), flags is non-zero */
if (flags && !starts_with(name, "refs/heads/") &&
strbuf_addstr(buf, name);
if (safe_create_leading_directories(buf->buf) ||
- !(f = fopen(buf->buf, "w")) ||
- fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
- fclose(f))
- return error("problems writing temporary file %s", buf->buf);
+ write_file_gently(buf->buf, "%s", oid_to_hex(oid)))
+ return error("problems writing temporary file %s: %s",
+ buf->buf, strerror(errno));
strbuf_setlen(buf, len);
return 0;
}
static int write_refs_to_temp_dir(struct strbuf *temp_dir,
- int refspec_nr, const char **refspec)
+ int refspec_nr, const char **refspec)
{
int i;
for (i = 0; i < refspec_nr; i++) {
- unsigned char sha1[20];
+ struct object_id oid;
char *ref;
- if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
+ if (dwim_ref(refspec[i], strlen(refspec[i]), oid.hash, &ref) != 1)
return error("Could not get ref %s", refspec[i]);
- if (write_one_ref(ref, sha1, 0, temp_dir)) {
+ if (write_one_ref(ref, &oid, 0, temp_dir)) {
free(ref);
return -1;
}
die("transport: invalid depth option '%s'", value);
}
return 0;
- } else if (!strcmp(name, TRANS_OPT_PUSH_CERT)) {
- opts->push_cert = !!value;
- return 0;
}
return 1;
}
args.progress = transport->progress;
args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
- args.push_cert = !!(flags & TRANSPORT_PUSH_CERT);
args.atomic = !!(flags & TRANSPORT_PUSH_ATOMIC);
args.url = transport->url;
+ if (flags & TRANSPORT_PUSH_CERT_ALWAYS)
+ args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
+ else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED)
+ args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
+ else
+ args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
+
ret = send_pack(&args, data->fd, data->conn, remote_refs,
&data->extra_have);
return strchr(url, ':') - url;
}
+static const struct string_list *protocol_whitelist(void)
+{
+ static int enabled = -1;
+ static struct string_list allowed = STRING_LIST_INIT_DUP;
+
+ if (enabled < 0) {
+ const char *v = getenv("GIT_ALLOW_PROTOCOL");
+ if (v) {
+ string_list_split(&allowed, v, ':', -1);
+ string_list_sort(&allowed);
+ enabled = 1;
+ } else {
+ enabled = 0;
+ }
+ }
+
+ return enabled ? &allowed : NULL;
+}
+
+int is_transport_allowed(const char *type)
+{
+ const struct string_list *allowed = protocol_whitelist();
+ return !allowed || string_list_has_string(allowed, type);
+}
+
+void transport_check_allowed(const char *type)
+{
+ if (!is_transport_allowed(type))
+ die("transport '%s' not allowed", type);
+}
+
+int transport_restrict_protocols(void)
+{
+ return !!protocol_whitelist();
+}
+
struct transport *transport_get(struct remote *remote, const char *url)
{
const char *helper;
if (helper) {
transport_helper_init(ret, helper);
} else if (starts_with(url, "rsync:")) {
+ transport_check_allowed("rsync");
ret->get_refs_list = get_refs_via_rsync;
ret->fetch = fetch_objs_via_rsync;
ret->push = rsync_transport_push;
ret->smart_options = NULL;
} else if (url_is_local_not_ssh(url) && is_file(url) && is_bundle(url, 1)) {
struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
+ transport_check_allowed("file");
ret->data = data;
ret->get_refs_list = get_refs_from_bundle;
ret->fetch = fetch_refs_from_bundle;
|| starts_with(url, "ssh://")
|| starts_with(url, "git+ssh://")
|| starts_with(url, "ssh+git://")) {
- /* These are builtin smart transports. */
+ /*
+ * These are builtin smart transports; "allowed" transports
+ * will be checked individually in git_connect.
+ */
struct git_transport_data *data = xcalloc(1, sizeof(*data));
ret->data = data;
ret->set_option = NULL;
return -1;
}
+ sigchain_push(SIGPIPE, SIG_IGN);
+
strbuf_init(&buf, 256);
for (r = remote_refs; r; r = r->next) {
r->peer_ref->name, sha1_to_hex(r->new_sha1),
r->name, sha1_to_hex(r->old_sha1));
- if (write_in_full(proc.in, buf.buf, buf.len) != buf.len) {
- ret = -1;
+ if (write_in_full(proc.in, buf.buf, buf.len) < 0) {
+ /* We do not mind if a hook does not read all refs. */
+ if (errno != EPIPE)
+ ret = -1;
break;
}
}
if (!ret)
ret = x;
+ sigchain_pop(SIGPIPE);
+
x = finish_command(&proc);
if (!ret)
ret = x;