Tell a server that protocol v1 can be used by sending the http header
'Git-Protocol' indicating this.
Also teach the apache http server to pass through the 'Git-Protocol'
header as an environment variable 'GIT_PROTOCOL'.
Signed-off-by: Brandon Williams <bmwill@xxxxxxxxxx>
---
cache.h | 2 ++
http.c | 18 +++++++++++++
t/lib-httpd/apache.conf | 7 +++++
t/t5700-protocol-v1.sh | 69 +++++++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 96 insertions(+)
diff --git a/cache.h b/cache.h
index 0c792545f..aaadac1f0 100644
--- a/cache.h
+++ b/cache.h
@@ -451,6 +451,8 @@ static inline enum object_type object_type(unsigned int mode)
* 'key[=value]'. Presence of unknown keys must be tolerated.
*/
#define GIT_PROTOCOL_ENVIRONMENT "GIT_PROTOCOL"
+/* HTTP header used to handshake the wire protocol */
+#define GIT_PROTOCOL_HEADER "Git-Protocol"
/*
* This environment variable is expected to contain a boolean indicating
diff --git a/http.c b/http.c
index 9e40a465f..ffb719216 100644
--- a/http.c
+++ b/http.c
@@ -12,6 +12,7 @@
#include "gettext.h"
#include "transport.h"
#include "packfile.h"
+#include "protocol.h"
static struct trace_key trace_curl = TRACE_KEY_INIT(CURL);
#if LIBCURL_VERSION_NUM >= 0x070a08
@@ -897,6 +898,21 @@ static void set_from_env(const char **var, const char *envname)
*var = val;
}
+static void protocol_http_header(void)
+{
+ if (get_protocol_version_config() > 0) {
+ struct strbuf protocol_header = STRBUF_INIT;
+
+ strbuf_addf(&protocol_header, GIT_PROTOCOL_HEADER ": version=%d",
+ get_protocol_version_config());
+
+
+ extra_http_headers = curl_slist_append(extra_http_headers,
+ protocol_header.buf);
+ strbuf_release(&protocol_header);
+ }
+}
+
void http_init(struct remote *remote, const char *url, int proactive_auth)
{
char *low_speed_limit;
@@ -927,6 +943,8 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
if (remote)
var_override(&http_proxy_authmethod, remote->http_proxy_authmethod);
+ protocol_http_header();
+
pragma_header = curl_slist_append(http_copy_default_headers(),
"Pragma: no-cache");
no_pragma_header = curl_slist_append(http_copy_default_headers(),
diff --git a/t/lib-httpd/apache.conf b/t/lib-httpd/apache.conf
index 0642ae7e6..df1943631 100644
--- a/t/lib-httpd/apache.conf
+++ b/t/lib-httpd/apache.conf
@@ -67,6 +67,9 @@ LockFile accept.lock
<IfModule !mod_unixd.c>
LoadModule unixd_module modules/mod_unixd.so
</IfModule>
+<IfModule !mod_setenvif.c>
+ LoadModule setenvif_module modules/mod_setenvif.so
+</IfModule>
</IfVersion>
PassEnv GIT_VALGRIND
@@ -76,6 +79,10 @@ PassEnv ASAN_OPTIONS
PassEnv GIT_TRACE
PassEnv GIT_CONFIG_NOSYSTEM
+<IfVersion >= 2.4>
+ SetEnvIf Git-Protocol ".*" GIT_PROTOCOL=$0
+</IfVersion>
+
Alias /dumb/ www/
Alias /auth/dumb/ www/auth/dumb/
diff --git a/t/t5700-protocol-v1.sh b/t/t5700-protocol-v1.sh
index 1988bbce6..222265127 100755
--- a/t/t5700-protocol-v1.sh
+++ b/t/t5700-protocol-v1.sh
@@ -220,4 +220,73 @@ test_expect_success 'push with ssh:// using protocol v1' '
grep "push< version 1" log
'
+# Test protocol v1 with 'http://' transport
+#
+. "$TEST_DIRECTORY"/lib-httpd.sh
+start_httpd
+
+test_expect_success 'create repo to be served by http:// transport' '
+ git init "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" &&
+ git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" config http.receivepack true &&
+ test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" one
+'
+
+test_expect_success 'clone with http:// using protocol v1' '
+ GIT_TRACE_PACKET=1 GIT_TRACE_CURL=1 git -c protocol.version=1 \
+ clone "$HTTPD_URL/smart/http_parent" http_child 2>log &&
+
+ git -C http_child log -1 --format=%s >actual &&
+ git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
+ test_cmp expect actual &&
+
+ # Client requested to use protocol v1
+ grep "Git-Protocol: version=1" log &&
+ # Server responded using protocol v1
+ grep "git< version 1" log
+'
+
+test_expect_success 'fetch with http:// using protocol v1' '
+ test_commit -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" two &&
+
+ GIT_TRACE_PACKET=1 git -C http_child -c protocol.version=1 \
+ fetch 2>log &&
+
+ git -C http_child log -1 --format=%s FETCH_HEAD >actual &&
+ git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
+ test_cmp expect actual &&
+
+ # Server responded using protocol v1
+ grep "git< version 1" log
+'
+
+test_expect_success 'pull with http:// using protocol v1' '
+ GIT_TRACE_PACKET=1 git -C http_child -c protocol.version=1 \
+ pull 2>log &&
+
+ git -C http_child log -1 --format=%s >actual &&
+ git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s >expect &&
+ test_cmp expect actual &&
+
+ # Server responded using protocol v1
+ grep "git< version 1" log
+'
+
+test_expect_success 'push with http:// using protocol v1' '
+ test_commit -C http_child three &&
+
+ # Since the repository being served isnt bare we need to push to
+ # another branch explicitly to avoid mangling the master branch
+ GIT_TRACE_PACKET=1 git -C http_child -c protocol.version=1 \
+ push origin HEAD:client_branch && #2>log &&
+
+ git -C http_child log -1 --format=%s >actual &&
+ git -C "$HTTPD_DOCUMENT_ROOT_PATH/http_parent" log -1 --format=%s client_branch >expect &&
+ test_cmp expect actual &&
+
+ # Server responded using protocol v1
+ grep "git< version 1" log
+'
+
+stop_httpd
+
test_done
--
2.14.1.992.g2c7b836f3a-goog
