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-rw-r--r--http.c180
1 files changed, 175 insertions, 5 deletions
diff --git a/http.c b/http.c
index 0da9e66398..1d5e3bbd11 100644
--- a/http.c
+++ b/http.c
@@ -11,6 +11,11 @@
#include "gettext.h"
#include "transport.h"
+#if LIBCURL_VERSION_NUM >= 0x070a08
+long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER;
+#else
+long int git_curl_ipresolve;
+#endif
int active_requests;
int http_is_verbose;
size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
@@ -57,16 +62,40 @@ static const char *ssl_key;
#if LIBCURL_VERSION_NUM >= 0x070908
static const char *ssl_capath;
#endif
+#if LIBCURL_VERSION_NUM >= 0x072c00
+static const char *ssl_pinnedkey;
+#endif
static const char *ssl_cainfo;
static long curl_low_speed_limit = -1;
static long curl_low_speed_time = -1;
static int curl_ftp_no_epsv;
static const char *curl_http_proxy;
+static const char *http_proxy_authmethod;
+static struct {
+ const char *name;
+ long curlauth_param;
+} proxy_authmethods[] = {
+ { "basic", CURLAUTH_BASIC },
+ { "digest", CURLAUTH_DIGEST },
+ { "negotiate", CURLAUTH_GSSNEGOTIATE },
+ { "ntlm", CURLAUTH_NTLM },
+#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
+ { "anyauth", CURLAUTH_ANY },
+#endif
+ /*
+ * CURLAUTH_DIGEST_IE has no corresponding command-line option in
+ * curl(1) and is not included in CURLAUTH_ANY, so we leave it out
+ * here, too
+ */
+};
+static struct credential proxy_auth = CREDENTIAL_INIT;
+static const char *curl_proxyuserpwd;
static const char *curl_cookie_file;
static int curl_save_cookies;
struct credential http_auth = CREDENTIAL_INIT;
static int http_proactive_auth;
static const char *user_agent;
+static int curl_empty_auth;
#if LIBCURL_VERSION_NUM >= 0x071700
/* Use CURLOPT_KEYPASSWD as is */
@@ -159,6 +188,9 @@ static void finish_active_slot(struct active_request_slot *slot)
#else
slot->results->auth_avail = 0;
#endif
+
+ curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CONNECTCODE,
+ &slot->results->http_connectcode);
}
/* Run callback if appropriate */
@@ -256,6 +288,9 @@ static int http_options(const char *var, const char *value, void *cb)
if (!strcmp("http.proxy", var))
return git_config_string(&curl_http_proxy, var, value);
+ if (!strcmp("http.proxyauthmethod", var))
+ return git_config_string(&http_proxy_authmethod, var, value);
+
if (!strcmp("http.cookiefile", var))
return git_config_string(&curl_cookie_file, var, value);
if (!strcmp("http.savecookies", var)) {
@@ -273,14 +308,31 @@ static int http_options(const char *var, const char *value, void *cb)
if (!strcmp("http.useragent", var))
return git_config_string(&user_agent, var, value);
+ if (!strcmp("http.emptyauth", var)) {
+ curl_empty_auth = git_config_bool(var, value);
+ return 0;
+ }
+
+ if (!strcmp("http.pinnedpubkey", var)) {
+#if LIBCURL_VERSION_NUM >= 0x072c00
+ return git_config_pathname(&ssl_pinnedkey, var, value);
+#else
+ warning(_("Public key pinning not supported with cURL < 7.44.0"));
+ return 0;
+#endif
+ }
+
/* Fall back on the default ones */
return git_default_config(var, value, cb);
}
static void init_curl_http_auth(CURL *result)
{
- if (!http_auth.username)
+ if (!http_auth.username) {
+ if (curl_empty_auth)
+ curl_easy_setopt(result, CURLOPT_USERPWD, ":");
return;
+ }
credential_fill(&http_auth);
@@ -304,6 +356,64 @@ static void init_curl_http_auth(CURL *result)
#endif
}
+/* *var must be free-able */
+static void var_override(const char **var, char *value)
+{
+ if (value) {
+ free((void *)*var);
+ *var = xstrdup(value);
+ }
+}
+
+static void set_proxyauth_name_password(CURL *result)
+{
+#if LIBCURL_VERSION_NUM >= 0x071301
+ curl_easy_setopt(result, CURLOPT_PROXYUSERNAME,
+ proxy_auth.username);
+ curl_easy_setopt(result, CURLOPT_PROXYPASSWORD,
+ proxy_auth.password);
+#else
+ struct strbuf s = STRBUF_INIT;
+
+ strbuf_addstr_urlencode(&s, proxy_auth.username, 1);
+ strbuf_addch(&s, ':');
+ strbuf_addstr_urlencode(&s, proxy_auth.password, 1);
+ curl_proxyuserpwd = strbuf_detach(&s, NULL);
+ curl_easy_setopt(result, CURLOPT_PROXYUSERPWD, curl_proxyuserpwd);
+#endif
+}
+
+static void init_curl_proxy_auth(CURL *result)
+{
+ if (proxy_auth.username) {
+ if (!proxy_auth.password)
+ credential_fill(&proxy_auth);
+ set_proxyauth_name_password(result);
+ }
+
+ var_override(&http_proxy_authmethod, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
+
+#if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
+ if (http_proxy_authmethod) {
+ int i;
+ for (i = 0; i < ARRAY_SIZE(proxy_authmethods); i++) {
+ if (!strcmp(http_proxy_authmethod, proxy_authmethods[i].name)) {
+ curl_easy_setopt(result, CURLOPT_PROXYAUTH,
+ proxy_authmethods[i].curlauth_param);
+ break;
+ }
+ }
+ if (i == ARRAY_SIZE(proxy_authmethods)) {
+ warning("unsupported proxy authentication method %s: using anyauth",
+ http_proxy_authmethod);
+ curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
+ }
+ }
+ else
+ curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
+#endif
+}
+
static int has_cert_password(void)
{
if (ssl_cert == NULL || ssl_cert_password_required != 1)
@@ -415,6 +525,10 @@ static CURL *get_curl_handle(void)
if (ssl_capath != NULL)
curl_easy_setopt(result, CURLOPT_CAPATH, ssl_capath);
#endif
+#if LIBCURL_VERSION_NUM >= 0x072c00
+ if (ssl_pinnedkey != NULL)
+ curl_easy_setopt(result, CURLOPT_PINNEDPUBLICKEY, ssl_pinnedkey);
+#endif
if (ssl_cainfo != NULL)
curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
@@ -462,6 +576,31 @@ static CURL *get_curl_handle(void)
curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
#endif
+ /*
+ * CURL also examines these variables as a fallback; but we need to query
+ * them here in order to decide whether to prompt for missing password (cf.
+ * init_curl_proxy_auth()).
+ *
+ * Unlike many other common environment variables, these are historically
+ * lowercase only. It appears that CURL did not know this and implemented
+ * only uppercase variants, which was later corrected to take both - with
+ * the exception of http_proxy, which is lowercase only also in CURL. As
+ * the lowercase versions are the historical quasi-standard, they take
+ * precedence here, as in CURL.
+ */
+ if (!curl_http_proxy) {
+ if (!strcmp(http_auth.protocol, "https")) {
+ var_override(&curl_http_proxy, getenv("HTTPS_PROXY"));
+ var_override(&curl_http_proxy, getenv("https_proxy"));
+ } else {
+ var_override(&curl_http_proxy, getenv("http_proxy"));
+ }
+ if (!curl_http_proxy) {
+ var_override(&curl_http_proxy, getenv("ALL_PROXY"));
+ var_override(&curl_http_proxy, getenv("all_proxy"));
+ }
+ }
+
if (curl_http_proxy) {
curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
#if LIBCURL_VERSION_NUM >= 0x071800
@@ -475,10 +614,18 @@ static CURL *get_curl_handle(void)
curl_easy_setopt(result,
CURLOPT_PROXYTYPE, CURLPROXY_SOCKS4);
#endif
+ if (strstr(curl_http_proxy, "://"))
+ credential_from_url(&proxy_auth, curl_http_proxy);
+ else {
+ struct strbuf url = STRBUF_INIT;
+ strbuf_addf(&url, "http://%s", curl_http_proxy);
+ credential_from_url(&proxy_auth, url.buf);
+ strbuf_release(&url);
+ }
+
+ curl_easy_setopt(result, CURLOPT_PROXY, proxy_auth.host);
}
-#if LIBCURL_VERSION_NUM >= 0x070a07
- curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
-#endif
+ init_curl_proxy_auth(result);
set_curl_keepalive(result);
@@ -519,6 +666,9 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
if (remote && remote->http_proxy)
curl_http_proxy = xstrdup(remote->http_proxy);
+ if (remote)
+ var_override(&http_proxy_authmethod, remote->http_proxy_authmethod);
+
pragma_header = curl_slist_append(pragma_header, "Pragma: no-cache");
no_pragma_header = curl_slist_append(no_pragma_header, "Pragma:");
@@ -617,6 +767,18 @@ void http_cleanup(void)
curl_http_proxy = NULL;
}
+ if (proxy_auth.password) {
+ memset(proxy_auth.password, 0, strlen(proxy_auth.password));
+ free(proxy_auth.password);
+ proxy_auth.password = NULL;
+ }
+
+ free((void *)curl_proxyuserpwd);
+ curl_proxyuserpwd = NULL;
+
+ free((void *)http_proxy_authmethod);
+ http_proxy_authmethod = NULL;
+
if (cert_auth.password != NULL) {
memset(cert_auth.password, 0, strlen(cert_auth.password));
free(cert_auth.password);
@@ -692,10 +854,14 @@ struct active_request_slot *get_active_slot(void)
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
curl_easy_setopt(slot->curl, CURLOPT_RANGE, NULL);
+
+#if LIBCURL_VERSION_NUM >= 0x070a08
+ curl_easy_setopt(slot->curl, CURLOPT_IPRESOLVE, git_curl_ipresolve);
+#endif
#ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
curl_easy_setopt(slot->curl, CURLOPT_HTTPAUTH, http_auth_methods);
#endif
- if (http_auth.password)
+ if (http_auth.password || curl_empty_auth)
init_curl_http_auth(slot->curl);
return slot;
@@ -946,6 +1112,8 @@ static int handle_curl_result(struct slot_results *results)
if (results->curl_result == CURLE_OK) {
credential_approve(&http_auth);
+ if (proxy_auth.password)
+ credential_approve(&proxy_auth);
return HTTP_OK;
} else if (missing_target(results))
return HTTP_MISSING_TARGET;
@@ -960,6 +1128,8 @@ static int handle_curl_result(struct slot_results *results)
return HTTP_REAUTH;
}
} else {
+ if (results->http_connectcode == 407)
+ credential_reject(&proxy_auth);
#if LIBCURL_VERSION_NUM >= 0x070c00
if (!curl_errorstr[0])
strlcpy(curl_errorstr,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-25 18:56:05 +0000