#include "sideband.h"
#include "run-command.h"
#include "url.h"
+#include "credential.h"
+#include "version.h"
+#include "pkt-line.h"
-int data_received;
int active_requests;
int http_is_verbose;
size_t http_post_buffer = 16 * LARGE_PACKET_MAX;
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;
+static struct credential http_auth = CREDENTIAL_INIT;
+static int http_proactive_auth;
static const char *user_agent;
#if LIBCURL_VERSION_NUM >= 0x071700
#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;
struct strbuf *buffer = buffer_;
strbuf_add(buffer, ptr, size);
- data_received++;
return size;
}
size_t fwrite_null(char *ptr, size_t eltsize, size_t nmemb, void *strbuf)
{
- data_received++;
return eltsize * nmemb;
}
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("Password: "));
- 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("Certificate Password: ");
- 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)
curl_easy_setopt(result, CURLOPT_HTTPAUTH, CURLAUTH_ANY);
#endif
- init_curl_http_auth(result);
+ if (http_proactive_auth)
+ init_curl_http_auth(result);
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)
+#ifdef CURLOPT_USE_SSL
+ if (curl_ssl_try)
+ curl_easy_setopt(result, CURLOPT_USE_SSL, CURLUSESSL_TRY);
+#endif
+
+ if (curl_http_proxy) {
curl_easy_setopt(result, CURLOPT_PROXY, curl_http_proxy);
+ curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
+ }
return result;
}
-static void http_auth_init(const char *url)
-{
- char *at, *colon, *cp, *slash, *decoded;
- int len;
-
- cp = strstr(url, "://");
- if (!cp)
- return;
-
- /*
- * 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)
- return; /* No credentials */
- if (!colon || at <= colon) {
- /* Only username */
- len = at - cp;
- user_name = xmalloc(len + 1);
- memcpy(user_name, cp, len);
- user_name[len] = '\0';
- decoded = url_decode(user_name);
- free(user_name);
- user_name = decoded;
- user_pass = NULL;
- } else {
- len = colon - cp;
- user_name = xmalloc(len + 1);
- memcpy(user_name, cp, len);
- user_name[len] = '\0';
- decoded = url_decode(user_name);
- free(user_name);
- user_name = decoded;
- len = at - (colon + 1);
- user_pass = xmalloc(len + 1);
- memcpy(user_pass, colon + 1, len);
- user_pass[len] = '\0';
- decoded = url_decode(user_pass);
- free(user_pass);
- user_pass = decoded;
- }
-}
-
static void set_from_env(const char **var, const char *envname)
{
const char *val = getenv(envname);
*var = val;
}
-void http_init(struct remote *remote)
+void http_init(struct remote *remote, const char *url, int proactive_auth)
{
char *low_speed_limit;
char *low_speed_time;
curl_global_init(CURL_GLOBAL_ALL);
+ http_proactive_auth = proactive_auth;
+
if (remote && remote->http_proxy)
curl_http_proxy = xstrdup(remote->http_proxy);
if (getenv("GIT_CURL_FTP_NO_EPSV"))
curl_ftp_no_epsv = 1;
- if (remote && remote->url && remote->url[0]) {
- http_auth_init(remote->url[0]);
+ if (url) {
+ credential_from_url(&http_auth, url);
if (!ssl_cert_password_required &&
getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
- !prefixcmp(remote->url[0], "https://"))
+ !prefixcmp(url, "https://"))
ssl_cert_password_required = 1;
}
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;
}
active_requests++;
slot->in_use = 1;
- slot->local = NULL;
slot->results = NULL;
slot->finished = NULL;
slot->callback_data = NULL;
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;
}
void run_active_slot(struct active_request_slot *slot)
{
#ifdef USE_CURL_MULTI
- long last_pos = 0;
- long current_pos;
fd_set readfds;
fd_set writefds;
fd_set excfds;
slot->finished = &finished;
while (!finished) {
- data_received = 0;
step_active_slots();
- if (!data_received && slot->local != NULL) {
- current_pos = ftell(slot->local);
- if (current_pos > last_pos)
- data_received++;
- last_pos = current_pos;
- }
+ if (slot->in_use) {
+#if LIBCURL_VERSION_NUM >= 0x070f04
+ long curl_timeout;
+ curl_multi_timeout(curlm, &curl_timeout);
+ if (curl_timeout == 0) {
+ continue;
+ } else if (curl_timeout == -1) {
+ select_timeout.tv_sec = 0;
+ select_timeout.tv_usec = 50000;
+ } else {
+ select_timeout.tv_sec = curl_timeout / 1000;
+ select_timeout.tv_usec = (curl_timeout % 1000) * 1000;
+ }
+#else
+ select_timeout.tv_sec = 0;
+ select_timeout.tv_usec = 50000;
+#endif
- if (slot->in_use && !data_received) {
- max_fd = 0;
+ max_fd = -1;
FD_ZERO(&readfds);
FD_ZERO(&writefds);
FD_ZERO(&excfds);
- select_timeout.tv_sec = 0;
- select_timeout.tv_usec = 50000;
- select(max_fd, &readfds, &writefds,
- &excfds, &select_timeout);
+ 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);
}
}
#else
return 1;
}
-static inline int hex(int v)
-{
- if (v < 10)
- return '0' + v;
- else
- return 'A' + v - 10;
-}
-
static char *quote_ref_url(const char *base, const char *ref)
{
struct strbuf buf = STRBUF_INIT;
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;
headers = curl_slist_append(headers, buf.buf);
strbuf_reset(&buf);
}
- slot->local = result;
} else
curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION,
fwrite_buffer);
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) {
- 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.
- */
- user_name = xstrdup(git_getpass("Username: "));
- 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;
}
- slot->local = NULL;
+ 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;
}
-int http_get_strbuf(const char *url, struct strbuf *result, int options)
+static int http_request_reauth(const char *url,
+ struct strbuf *type,
+ void *result, int target,
+ int options)
{
- int http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options);
- if (http_ret == HTTP_REAUTH) {
- http_ret = http_request(url, result, HTTP_REQUEST_STRBUF, options);
+ int ret = http_request(url, type, result, target, options);
+ if (ret != HTTP_REAUTH)
+ return ret;
+
+ /*
+ * 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_ret;
+ return http_request(url, type, result, target, options);
+}
+
+int http_get_strbuf(const char *url,
+ struct strbuf *type,
+ struct strbuf *result, int 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(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;
if (preq->packfile != NULL) {
fclose(preq->packfile);
preq->packfile = NULL;
- preq->slot->local = NULL;
}
if (preq->range_header != NULL) {
curl_slist_free_all(preq->range_header);
fclose(preq->packfile);
preq->packfile = NULL;
- preq->slot->local = NULL;
lst = preq->lst;
while (*lst != p)
}
preq->slot = get_active_slot();
- preq->slot->local = preq->packfile;
curl_easy_setopt(preq->slot->curl, CURLOPT_FILE, preq->packfile);
curl_easy_setopt(preq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite);
curl_easy_setopt(preq->slot->curl, CURLOPT_URL, preq->url);
git_SHA1_Update(&freq->c, expn,
sizeof(expn) - freq->stream.avail_out);
} while (freq->stream.avail_in && freq->zret == Z_OK);
- data_received++;
return size;
}