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-rw-r--r--remote-curl.c63
1 files changed, 45 insertions, 18 deletions
diff --git a/remote-curl.c b/remote-curl.c
index 6dcdb7b991..6008d7e87c 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -212,14 +212,9 @@ static int set_option(const char *name, const char *value)
options.filter = xstrdup(value);
return 0;
} else if (!strcmp(name, "object-format")) {
- int algo;
options.object_format = 1;
- if (strcmp(value, "true")) {
- algo = hash_algo_by_name(value);
- if (algo == GIT_HASH_UNKNOWN)
- die("unknown object format '%s'", value);
- options.hash_algo = &hash_algos[algo];
- }
+ if (strcmp(value, "true"))
+ die(_("unknown value for object-format: %s"), value);
return 0;
} else {
return 1 /* unsupported */;
@@ -271,12 +266,23 @@ static struct ref *parse_git_refs(struct discovery *heads, int for_push)
return list;
}
+/*
+ * Try to detect the hash algorithm used by the remote repository when using
+ * the dumb HTTP transport. As dumb transports cannot tell us the object hash
+ * directly have to derive it from the advertised ref lengths.
+ */
static const struct git_hash_algo *detect_hash_algo(struct discovery *heads)
{
const char *p = memchr(heads->buf, '\t', heads->len);
int algo;
+
+ /*
+ * In case the remote has no refs we have no way to reliably determine
+ * the object hash used by that repository. In that case we simply fall
+ * back to SHA1, which may or may not be correct.
+ */
if (!p)
- return the_hash_algo;
+ return &hash_algos[GIT_HASH_SHA1];
algo = hash_algo_by_length((p - heads->buf) / 2);
if (algo == GIT_HASH_UNKNOWN)
@@ -300,6 +306,12 @@ static struct ref *parse_info_refs(struct discovery *heads)
"is this a git repository?",
transport_anonymize_url(url.buf));
+ /*
+ * Set the repository's hash algo to whatever we have just detected.
+ * This ensures that we can correctly parse the remote references.
+ */
+ repo_set_hash_algo(the_repository, hash_algo_by_ptr(options.hash_algo));
+
data = heads->buf;
start = NULL;
mid = data;
@@ -894,7 +906,7 @@ static curl_off_t xcurl_off_t(size_t len)
static int post_rpc(struct rpc_state *rpc, int stateless_connect, int flush_received)
{
struct active_request_slot *slot;
- struct curl_slist *headers = http_copy_default_headers();
+ struct curl_slist *headers = NULL;
int use_gzip = rpc->gzip_request;
char *gzip_body = NULL;
size_t gzip_size = 0;
@@ -927,20 +939,24 @@ static int post_rpc(struct rpc_state *rpc, int stateless_connect, int flush_rece
do {
err = probe_rpc(rpc, &results);
if (err == HTTP_REAUTH)
- credential_fill(&http_auth);
+ credential_fill(&http_auth, 0);
} while (err == HTTP_REAUTH);
if (err != HTTP_OK)
return -1;
- if (results.auth_avail & CURLAUTH_GSSNEGOTIATE)
+ if (results.auth_avail & CURLAUTH_GSSNEGOTIATE || http_auth.authtype)
needs_100_continue = 1;
}
+retry:
+ headers = http_copy_default_headers();
headers = curl_slist_append(headers, rpc->hdr_content_type);
headers = curl_slist_append(headers, rpc->hdr_accept);
headers = curl_slist_append(headers, needs_100_continue ?
"Expect: 100-continue" : "Expect:");
+ headers = http_append_auth_header(&http_auth, headers);
+
/* Add Accept-Language header */
if (rpc->hdr_accept_language)
headers = curl_slist_append(headers, rpc->hdr_accept_language);
@@ -949,7 +965,6 @@ static int post_rpc(struct rpc_state *rpc, int stateless_connect, int flush_rece
if (rpc->protocol_header)
headers = curl_slist_append(headers, rpc->protocol_header);
-retry:
slot = get_active_slot();
curl_easy_setopt(slot->curl, CURLOPT_NOBODY, 0);
@@ -1046,7 +1061,8 @@ retry:
rpc->any_written = 0;
err = run_slot(slot, NULL);
if (err == HTTP_REAUTH && !large_request) {
- credential_fill(&http_auth);
+ credential_fill(&http_auth, 0);
+ curl_slist_free_all(headers);
goto retry;
}
if (err != HTTP_OK)
@@ -1449,8 +1465,14 @@ static int stateless_connect(const char *service_name)
* establish a stateless connection, otherwise we need to tell the
* client to fallback to using other transport helper functions to
* complete their request.
+ *
+ * The "git-upload-archive" service is a read-only operation. Fallback
+ * to use "git-upload-pack" service to discover protocol version.
*/
- discover = discover_refs(service_name, 0);
+ if (!strcmp(service_name, "git-upload-archive"))
+ discover = discover_refs("git-upload-pack", 0);
+ else
+ discover = discover_refs(service_name, 0);
if (discover->version != protocol_v2) {
printf("fallback\n");
fflush(stdout);
@@ -1488,9 +1510,11 @@ static int stateless_connect(const char *service_name)
/*
* Dump the capability listing that we got from the server earlier
- * during the info/refs request.
+ * during the info/refs request. This does not work with the
+ * "git-upload-archive" service.
*/
- write_or_die(rpc.in, discover->buf, discover->len);
+ if (strcmp(service_name, "git-upload-archive"))
+ write_or_die(rpc.in, discover->buf, discover->len);
/* Until we see EOF keep sending POSTs */
while (1) {
@@ -1566,8 +1590,11 @@ int cmd_main(int argc, const char **argv)
if (buf.len == 0)
break;
if (starts_with(buf.buf, "fetch ")) {
- if (nongit)
- die(_("remote-curl: fetch attempted without a local repo"));
+ if (nongit) {
+ setup_git_directory_gently(&nongit);
+ if (nongit)
+ die(_("remote-curl: fetch attempted without a local repo"));
+ }
parse_fetch(&buf);
} else if (!strcmp(buf.buf, "list") || starts_with(buf.buf, "list ")) {