diff options
Diffstat (limited to 'transport.c')
| -rw-r--r-- | transport.c | 68 |
1 files changed, 56 insertions, 12 deletions
diff --git a/transport.c b/transport.c index f080e93dcd..863eb524f9 100644 --- a/transport.c +++ b/transport.c @@ -278,8 +278,8 @@ static int fetch_objs_via_rsync(struct transport *transport, 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; @@ -291,7 +291,7 @@ static int write_one_ref(const char *name, const unsigned char *sha1, strbuf_addstr(buf, name); if (safe_create_leading_directories(buf->buf) || - write_file(buf->buf, 0, "%s\n", sha1_to_hex(sha1))) + 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); @@ -299,18 +299,18 @@ static int write_one_ref(const char *name, const unsigned char *sha1, } 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; } @@ -476,9 +476,6 @@ static int set_git_option(struct git_transport_options *opts, 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; } @@ -829,10 +826,16 @@ static int git_transport_push(struct transport *transport, struct ref *remote_re 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); @@ -912,6 +915,42 @@ static int external_specification_len(const char *url) 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; @@ -943,12 +982,14 @@ struct transport *transport_get(struct remote *remote, const char *url) 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; @@ -960,7 +1001,10 @@ struct transport *transport_get(struct remote *remote, const char *url) || 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; |