#include "sideband.h"
#include "run-command.h"
#include "url.h"
+#include "credential.h"
+#include "version.h"
+#include "pkt-line.h"
int active_requests;
int http_is_verbose;
char curl_errorstr[CURL_ERROR_SIZE];
static int curl_ssl_verify = -1;
+static int curl_ssl_try;
static const char *ssl_cert;
#if LIBCURL_VERSION_NUM >= 0x070903
static const char *ssl_key;
static int curl_ftp_no_epsv;
static const char *curl_http_proxy;
static const char *curl_cookie_file;
-static char *user_name, *user_pass, *description;
+static struct credential http_auth = CREDENTIAL_INIT;
static int http_proactive_auth;
static const char *user_agent;
#define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
#endif
-static char *ssl_cert_password;
+static struct credential cert_auth = CREDENTIAL_INIT;
static int ssl_cert_password_required;
static struct curl_slist *pragma_header;
}
#endif
-static char *git_getpass_with_description(const char *what, const char *desc)
-{
- struct strbuf prompt = STRBUF_INIT;
- char *r;
-
- if (desc)
- strbuf_addf(&prompt, "%s for '%s': ", what, desc);
- else
- strbuf_addf(&prompt, "%s: ", what);
- /*
- * NEEDSWORK: for usernames, we should do something less magical that
- * actually echoes the characters. However, we need to read from
- * /dev/tty and not stdio, which is not portable (but getpass will do
- * it for us). http.c uses the same workaround.
- */
- r = git_getpass(prompt.buf);
-
- strbuf_release(&prompt);
- return xstrdup(r);
-}
-
static int http_options(const char *var, const char *value, void *cb)
{
if (!strcmp("http.sslverify", var)) {
ssl_cert_password_required = 1;
return 0;
}
+ if (!strcmp("http.ssltry", var)) {
+ curl_ssl_try = git_config_bool(var, value);
+ return 0;
+ }
if (!strcmp("http.minsessions", var)) {
min_curl_sessions = git_config_int(var, value);
#ifndef USE_CURL_MULTI
static void init_curl_http_auth(CURL *result)
{
- if (user_name) {
- struct strbuf up = STRBUF_INIT;
- if (!user_pass)
- user_pass = xstrdup(git_getpass_with_description("Password", description));
- strbuf_addf(&up, "%s:%s", user_name, user_pass);
- curl_easy_setopt(result, CURLOPT_USERPWD,
- strbuf_detach(&up, NULL));
+ if (!http_auth.username)
+ return;
+
+ credential_fill(&http_auth);
+
+#if LIBCURL_VERSION_NUM >= 0x071301
+ curl_easy_setopt(result, CURLOPT_USERNAME, http_auth.username);
+ curl_easy_setopt(result, CURLOPT_PASSWORD, http_auth.password);
+#else
+ {
+ static struct strbuf up = STRBUF_INIT;
+ strbuf_reset(&up);
+ strbuf_addf(&up, "%s:%s",
+ http_auth.username, http_auth.password);
+ curl_easy_setopt(result, CURLOPT_USERPWD, up.buf);
}
+#endif
}
static int has_cert_password(void)
{
- if (ssl_cert_password != NULL)
- return 1;
if (ssl_cert == NULL || ssl_cert_password_required != 1)
return 0;
- /* Only prompt the user once. */
- ssl_cert_password_required = -1;
- ssl_cert_password = git_getpass_with_description("Certificate Password", description);
- if (ssl_cert_password != NULL) {
- ssl_cert_password = xstrdup(ssl_cert_password);
- return 1;
- } else
- return 0;
+ if (!cert_auth.password) {
+ cert_auth.protocol = xstrdup("cert");
+ cert_auth.username = xstrdup("");
+ cert_auth.path = xstrdup(ssl_cert);
+ credential_fill(&cert_auth);
+ }
+ return 1;
}
static CURL *get_curl_handle(void)
if (ssl_cert != NULL)
curl_easy_setopt(result, CURLOPT_SSLCERT, ssl_cert);
if (has_cert_password())
- curl_easy_setopt(result, CURLOPT_KEYPASSWD, ssl_cert_password);
+ curl_easy_setopt(result, CURLOPT_KEYPASSWD, cert_auth.password);
#if LIBCURL_VERSION_NUM >= 0x070903
if (ssl_key != NULL)
curl_easy_setopt(result, CURLOPT_SSLKEY, ssl_key);
#endif
if (ssl_cainfo != NULL)
curl_easy_setopt(result, CURLOPT_CAINFO, ssl_cainfo);
- curl_easy_setopt(result, CURLOPT_FAILONERROR, 1);
if (curl_low_speed_limit > 0 && curl_low_speed_time > 0) {
curl_easy_setopt(result, CURLOPT_LOW_SPEED_LIMIT,
curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
curl_easy_setopt(result, CURLOPT_USERAGENT,
- user_agent ? user_agent : GIT_HTTP_USER_AGENT);
+ user_agent ? user_agent : git_user_agent());
if (curl_ftp_no_epsv)
curl_easy_setopt(result, CURLOPT_FTP_USE_EPSV, 0);
- if (curl_http_proxy)
- curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
-
- return result;
-}
-
-static void http_auth_init(const char *url)
-{
- const char *at, *colon, *cp, *slash, *host;
-
- cp = strstr(url, "://");
- if (!cp)
- return;
+#ifdef CURLOPT_USE_SSL
+ if (curl_ssl_try)
+ curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
+#endif
- /*
- * Ok, the URL looks like "proto://something". Which one?
- * "proto://<user>:<pass>@<host>/...",
- * "proto://<user>@<host>/...", or just
- * "proto://<host>/..."?
- */
- cp += 3;
- at = strchr(cp, '@');
- colon = strchr(cp, ':');
- slash = strchrnul(cp, '/');
- if (!at || slash <= at) {
- /* No credentials, but we may have to ask for some later */
- host = cp;
- }
- else if (!colon || at <= colon) {
- /* Only username */
- user_name = url_decode_mem(cp, at - cp);
- user_pass = NULL;
- host = at + 1;
- } else {
- user_name = url_decode_mem(cp, colon - cp);
- user_pass = url_decode_mem(colon + 1, at - (colon + 1));
- host = at + 1;
+ if (curl_http_proxy) {
+ curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
+ curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
}
- description = url_decode_mem(host, slash - host);
+ return result;
}
static void set_from_env(const char **var, const char *envname)
curl_ftp_no_epsv = 1;
if (url) {
- http_auth_init(url);
+ credential_from_url(&http_auth, url);
if (!ssl_cert_password_required &&
getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
!prefixcmp(url, "https://"))
curl_http_proxy = NULL;
}
- if (ssl_cert_password != NULL) {
- memset(ssl_cert_password, 0, strlen(ssl_cert_password));
- free(ssl_cert_password);
- ssl_cert_password = NULL;
+ if (cert_auth.password != NULL) {
+ memset(cert_auth.password, 0, strlen(cert_auth.password));
+ free(cert_auth.password);
+ cert_auth.password = NULL;
}
ssl_cert_password_required = 0;
}
curl_easy_setopt(slot->curl, CURLOPT_POSTFIELDS, NULL);
curl_easy_setopt(slot->curl, CURLOPT_UPLOAD, 0);
curl_easy_setopt(slot->curl, CURLOPT_HTTPGET, 1);
+ curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 1);
+ if (http_auth.password)
+ init_curl_http_auth(slot->curl);
return slot;
}
FD_ZERO(&excfds);
curl_multi_fdset(curlm, &readfds, &writefds, &excfds, &max_fd);
+ /*
+ * It can happen that curl_multi_timeout returns a pathologically
+ * long timeout when curl_multi_fdset returns no file descriptors
+ * to read. See commit message for more details.
+ */
+ if (max_fd < 0 &&
+ (select_timeout.tv_sec > 0 ||
+ select_timeout.tv_usec > 50000)) {
+ select_timeout.tv_sec = 0;
+ select_timeout.tv_usec = 50000;
+ }
+
select(max_fd+1, &readfds, &writefds, &excfds, &select_timeout);
}
}
return strbuf_detach(&buf, NULL);
}
+int handle_curl_result(struct slot_results *results)
+{
+ /*
+ * If we see a failing http code with CURLE_OK, we have turned off
+ * FAILONERROR (to keep the server's custom error response), and should
+ * translate the code into failure here.
+ */
+ if (results->curl_result == CURLE_OK &&
+ results->http_code >= 400) {
+ results->curl_result = CURLE_HTTP_RETURNED_ERROR;
+ /*
+ * Normally curl will already have put the "reason phrase"
+ * from the server into curl_errorstr; unfortunately without
+ * FAILONERROR it is lost, so we can give only the numeric
+ * status code.
+ */
+ snprintf(curl_errorstr, sizeof(curl_errorstr),
+ "The requested URL returned error: %ld",
+ results->http_code);
+ }
+
+ if (results->curl_result == CURLE_OK) {
+ credential_approve(&http_auth);
+ return HTTP_OK;
+ } else if (missing_target(results))
+ return HTTP_MISSING_TARGET;
+ else if (results->http_code == 401) {
+ if (http_auth.username && http_auth.password) {
+ credential_reject(&http_auth);
+ return HTTP_NOAUTH;
+ } else {
+ credential_fill(&http_auth);
+ return HTTP_REAUTH;
+ }
+ } else {
+#if LIBCURL_VERSION_NUM >= 0x070c00
+ if (!curl_errorstr[0])
+ strlcpy(curl_errorstr,
+ curl_easy_strerror(results->curl_result),
+ sizeof(curl_errorstr));
+#endif
+ return HTTP_ERROR;
+ }
+}
+
/* http_request() targets */
#define HTTP_REQUEST_STRBUF 0
#define HTTP_REQUEST_FILE 1
-static int http_request(const char *url, void *result, int target, int options)
+static int http_request(const char *url, struct strbuf *type,
+ void *result, int target, int options)
{
struct active_request_slot *slot;
struct slot_results results;
strbuf_addstr(&buf, "Pragma:");
if (options & HTTP_NO_CACHE)
strbuf_addstr(&buf, " no-cache");
+ if (options & HTTP_KEEP_ERROR)
+ curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
headers = curl_slist_append(headers, buf.buf);
curl_easy_setopt(slot->curl, CURLOPT_URL, url);
curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, headers);
+ curl_easy_setopt(slot->curl, CURLOPT_ENCODING, "gzip");
if (start_active_slot(slot)) {
run_active_slot(slot);
- if (results.curl_result == CURLE_OK)
- ret = HTTP_OK;
- else if (missing_target(&results))
- ret = HTTP_MISSING_TARGET;
- else if (results.http_code == 401) {
- if (user_name && user_pass) {
- ret = HTTP_NOAUTH;
- } else {
- /*
- * git_getpass is needed here because its very likely stdin/stdout are
- * pipes to our parent process. So we instead need to use /dev/tty,
- * but that is non-portable. Using git_getpass() can at least be stubbed
- * on other platforms with a different implementation if/when necessary.
- */
- if (!user_name)
- user_name = xstrdup(git_getpass_with_description("Username", description));
- init_curl_http_auth(slot->curl);
- ret = HTTP_REAUTH;
- }
- } else {
- if (!curl_errorstr[0])
- strlcpy(curl_errorstr,
- curl_easy_strerror(results.curl_result),
- sizeof(curl_errorstr));
- ret = HTTP_ERROR;
- }
+ ret = handle_curl_result(&results);
} else {
- error("Unable to start HTTP request for %s", url);
+ snprintf(curl_errorstr, sizeof(curl_errorstr),
+ "failed to start HTTP request");
ret = HTTP_START_FAILED;
}
+ if (type) {
+ char *t;
+ strbuf_reset(type);
+ curl_easy_getinfo(slot->curl, CURLINFO_CONTENT_TYPE, &t);
+ if (t)
+ strbuf_addstr(type, t);
+ }
+
curl_slist_free_all(headers);
strbuf_release(&buf);
return ret;
}
-static int http_request_reauth(const char *url, void *result, int target,
+static int http_request_reauth(const char *url,
+ struct strbuf *type,
+ void *result, int target,
int options)
{
- int ret = http_request(url, result, target, options);
+ int ret = http_request(url, type, result, target, options);
if (ret != HTTP_REAUTH)
return ret;
- return http_request(url, result, target, options);
+
+ /*
+ * If we are using KEEP_ERROR, the previous request may have
+ * put cruft into our output stream; we should clear it out before
+ * making our next request. We only know how to do this for
+ * the strbuf case, but that is enough to satisfy current callers.
+ */
+ if (options & HTTP_KEEP_ERROR) {
+ switch (target) {
+ case HTTP_REQUEST_STRBUF:
+ strbuf_reset(result);
+ break;
+ default:
+ die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
+ }
+ }
+ return http_request(url, type, result, target, options);
}
-int http_get_strbuf(const char *url, struct strbuf *result, int options)
+int http_get_strbuf(const char *url,
+ struct strbuf *type,
+ struct strbuf *result, int options)
{
- return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options);
+ return http_request_reauth(url, type, result,
+ HTTP_REQUEST_STRBUF, options);
}
/*
- * Downloads an url and stores the result in the given file.
+ * Downloads a URL and stores the result in the given file.
*
* If a previous interrupted download is detected (i.e. a previous temporary
* file is still around) the download is resumed.
goto cleanup;
}
- ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options);
+ ret = http_request_reauth(url, NULL, result, HTTP_REQUEST_FILE, options);
fclose(result);
if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename))
return ret;
}
-int http_error(const char *url, int ret)
-{
- /* http_request has already handled HTTP_START_FAILED. */
- if (ret != HTTP_START_FAILED)
- error("%s while accessing %s", curl_errorstr, url);
-
- return ret;
-}
-
int http_fetch_ref(const char *base, struct ref *ref)
{
char *url;
int ret = -1;
url = quote_ref_url(base, ref->name);
- if (http_get_strbuf(url, &buffer, HTTP_NO_CACHE) == HTTP_OK) {
+ if (http_get_strbuf(url, NULL, &buffer, HTTP_NO_CACHE) == HTTP_OK) {
strbuf_rtrim(&buffer);
if (buffer.len == 40)
ret = get_sha1_hex(buffer.buf, ref->old_sha1);
tmp = strbuf_detach(&buf, NULL);
if (http_get_file(url, tmp, 0) != HTTP_OK) {
- error("Unable to get pack index %s\n", url);
+ error("Unable to get pack index %s", url);
free(tmp);
tmp = NULL;
}
strbuf_addstr(&buf, "objects/info/packs");
url = strbuf_detach(&buf, NULL);
- ret = http_get_strbuf(url, &buf, HTTP_NO_CACHE);
+ ret = http_get_strbuf(url, NULL, &buf, HTTP_NO_CACHE);
if (ret != HTTP_OK)
goto cleanup;