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http: add support selecting http version
Usually we don't need to set libcurl to choose which version of the HTTP protocol to use to communicate with a server. But different versions of libcurl, the default value is not the same. CURL >= 7.62.0: CURL_HTTP_VERSION_2TLS CURL < 7.62: CURL_HTTP_VERSION_1_1 In order to give users the freedom to control the HTTP version, we need to add a setting to choose which HTTP version to use. Signed-off-by: Force Charlie <charlieio@outlook.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -1935,6 +1935,15 @@ http.saveCookies::
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If set, store cookies received during requests to the file specified by
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http.cookieFile. Has no effect if http.cookieFile is unset.
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http.version::
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Use the specified HTTP protocol version when communicating with a server.
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If you want to force the default. The available and default version depend
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on libcurl. Actually the possible values of
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this option are:
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- HTTP/2
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- HTTP/1.1
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http.sslVersion::
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The SSL version to use when negotiating an SSL connection, if you
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want to force the default. The available and default version
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39
http.c
39
http.c
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@ -48,6 +48,7 @@ char curl_errorstr[CURL_ERROR_SIZE];
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static int curl_ssl_verify = -1;
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static int curl_ssl_try;
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static const char *curl_http_version = NULL;
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static const char *ssl_cert;
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static const char *ssl_cipherlist;
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static const char *ssl_version;
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@ -284,6 +285,9 @@ static void process_curl_messages(void)
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static int http_options(const char *var, const char *value, void *cb)
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{
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if (!strcmp("http.version", var)) {
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return git_config_string(&curl_http_version, var, value);
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}
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if (!strcmp("http.sslverify", var)) {
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curl_ssl_verify = git_config_bool(var, value);
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return 0;
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@ -789,6 +793,31 @@ static long get_curl_allowed_protocols(int from_user)
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}
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#endif
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#if LIBCURL_VERSION_NUM >=0x072f00
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static int get_curl_http_version_opt(const char *version_string, long *opt)
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{
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int i;
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static struct {
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const char *name;
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long opt_token;
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} choice[] = {
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{ "HTTP/1.1", CURL_HTTP_VERSION_1_1 },
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{ "HTTP/2", CURL_HTTP_VERSION_2 }
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};
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for (i = 0; i < ARRAY_SIZE(choice); i++) {
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if (!strcmp(version_string, choice[i].name)) {
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*opt = choice[i].opt_token;
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return 0;
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}
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}
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warning("unknown value given to http.version: '%s'", version_string);
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return -1; /* not found */
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}
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#endif
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static CURL *get_curl_handle(void)
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{
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CURL *result = curl_easy_init();
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@ -806,6 +835,16 @@ static CURL *get_curl_handle(void)
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curl_easy_setopt(result, CURLOPT_SSL_VERIFYHOST, 2);
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}
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#if LIBCURL_VERSION_NUM >= 0x072f00 // 7.47.0
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if (curl_http_version) {
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long opt;
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if (!get_curl_http_version_opt(curl_http_version, &opt)) {
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/* Set request use http version */
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curl_easy_setopt(result, CURLOPT_HTTP_VERSION, opt);
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}
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}
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#endif
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#if LIBCURL_VERSION_NUM >= 0x070907
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curl_easy_setopt(result, CURLOPT_NETRC, CURL_NETRC_OPTIONAL);
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#endif
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