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Diffstat (limited to 'http.c')
-rw-r--r--http.c189
1 files changed, 156 insertions, 33 deletions
diff --git a/http.c b/http.c
index f3e1439..70eaa26 100644
--- a/http.c
+++ b/http.c
@@ -47,7 +47,7 @@ static int curl_ftp_no_epsv;
static const char *curl_http_proxy;
static const char *curl_cookie_file;
static int curl_save_cookies;
-static struct credential http_auth = CREDENTIAL_INIT;
+struct credential http_auth = CREDENTIAL_INIT;
static int http_proactive_auth;
static const char *user_agent;
@@ -260,6 +260,42 @@ static int has_cert_password(void)
return 1;
}
+#if LIBCURL_VERSION_NUM >= 0x071900
+static void set_curl_keepalive(CURL *c)
+{
+ curl_easy_setopt(c, CURLOPT_TCP_KEEPALIVE, 1);
+}
+
+#elif LIBCURL_VERSION_NUM >= 0x071000
+static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
+{
+ int ka = 1;
+ int rc;
+ socklen_t len = (socklen_t)sizeof(ka);
+
+ if (type != CURLSOCKTYPE_IPCXN)
+ return 0;
+
+ rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len);
+ if (rc < 0)
+ warning("unable to set SO_KEEPALIVE on socket %s",
+ strerror(errno));
+
+ return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
+}
+
+static void set_curl_keepalive(CURL *c)
+{
+ curl_easy_setopt(c, CURLOPT_SOCKOPTFUNCTION, sockopt_callback);
+}
+
+#else
+static void set_curl_keepalive(CURL *c)
+{
+ /* not supported on older curl versions */
+}
+#endif
+
static CURL *get_curl_handle(void)
{
CURL *result = curl_easy_init();
@@ -332,6 +368,8 @@ static CURL *get_curl_handle(void)
curl_easy_setopt(result, CURLOPT_PROXYAUTH, CURLAUTH_ANY);
}
+ set_curl_keepalive(result);
+
return result;
}
@@ -422,7 +460,7 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
credential_from_url(&http_auth, url);
if (!ssl_cert_password_required &&
getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
- !prefixcmp(url, "https://"))
+ starts_with(url, "https://"))
ssl_cert_password_required = 1;
}
@@ -723,6 +761,12 @@ void finish_active_slot(struct active_request_slot *slot)
if (slot->results != NULL) {
slot->results->curl_result = slot->curl_result;
slot->results->http_code = slot->http_code;
+#if LIBCURL_VERSION_NUM >= 0x070a08
+ curl_easy_getinfo(slot->curl, CURLINFO_HTTPAUTH_AVAIL,
+ &slot->results->auth_avail);
+#else
+ slot->results->auth_avail = 0;
+#endif
}
/* Run callback if appropriate */
@@ -823,7 +867,6 @@ int handle_curl_result(struct slot_results *results)
credential_reject(&http_auth);
return HTTP_NOAUTH;
} else {
- credential_fill(&http_auth);
return HTTP_REAUTH;
}
} else {
@@ -837,12 +880,25 @@ int handle_curl_result(struct slot_results *results)
}
}
+static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
+{
+ char *ptr;
+ CURLcode ret;
+
+ strbuf_reset(buf);
+ ret = curl_easy_getinfo(curl, info, &ptr);
+ if (!ret && ptr)
+ strbuf_addstr(buf, ptr);
+ return ret;
+}
+
/* http_request() targets */
#define HTTP_REQUEST_STRBUF 0
#define HTTP_REQUEST_FILE 1
-static int http_request(const char *url, struct strbuf *type,
- void *result, int target, int options)
+static int http_request(const char *url,
+ void *result, int target,
+ const struct http_get_options *options)
{
struct active_request_slot *slot;
struct slot_results results;
@@ -875,9 +931,9 @@ static int http_request(const char *url, struct strbuf *type,
}
strbuf_addstr(&buf, "Pragma:");
- if (options & HTTP_NO_CACHE)
+ if (options && options->no_cache)
strbuf_addstr(&buf, " no-cache");
- if (options & HTTP_KEEP_ERROR)
+ if (options && options->keep_error)
curl_easy_setopt(slot->curl, CURLOPT_FAILONERROR, 0);
headers = curl_slist_append(headers, buf.buf);
@@ -895,13 +951,13 @@ static int http_request(const char *url, struct strbuf *type,
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);
- }
+ if (options && options->content_type)
+ curlinfo_strbuf(slot->curl, CURLINFO_CONTENT_TYPE,
+ options->content_type);
+
+ if (options && options->effective_url)
+ curlinfo_strbuf(slot->curl, CURLINFO_EFFECTIVE_URL,
+ options->effective_url);
curl_slist_free_all(headers);
strbuf_release(&buf);
@@ -909,12 +965,71 @@ static int http_request(const char *url, struct strbuf *type,
return ret;
}
+/*
+ * Update the "base" url to a more appropriate value, as deduced by
+ * redirects seen when requesting a URL starting with "url".
+ *
+ * The "asked" parameter is a URL that we asked curl to access, and must begin
+ * with "base".
+ *
+ * The "got" parameter is the URL that curl reported to us as where we ended
+ * up.
+ *
+ * Returns 1 if we updated the base url, 0 otherwise.
+ *
+ * Our basic strategy is to compare "base" and "asked" to find the bits
+ * specific to our request. We then strip those bits off of "got" to yield the
+ * new base. So for example, if our base is "http://example.com/foo.git",
+ * and we ask for "http://example.com/foo.git/info/refs", we might end up
+ * with "https://other.example.com/foo.git/info/refs". We would want the
+ * new URL to become "https://other.example.com/foo.git".
+ *
+ * Note that this assumes a sane redirect scheme. It's entirely possible
+ * in the example above to end up at a URL that does not even end in
+ * "info/refs". In such a case we simply punt, as there is not much we can
+ * do (and such a scheme is unlikely to represent a real git repository,
+ * which means we are likely about to abort anyway).
+ */
+static int update_url_from_redirect(struct strbuf *base,
+ const char *asked,
+ const struct strbuf *got)
+{
+ const char *tail;
+ size_t tail_len;
+
+ if (!strcmp(asked, got->buf))
+ return 0;
+
+ if (!starts_with(asked, base->buf))
+ die("BUG: update_url_from_redirect: %s is not a superset of %s",
+ asked, base->buf);
+
+ tail = asked + base->len;
+ tail_len = strlen(tail);
+
+ if (got->len < tail_len ||
+ strcmp(tail, got->buf + got->len - tail_len))
+ return 0; /* insane redirect scheme */
+
+ strbuf_reset(base);
+ strbuf_add(base, got->buf, got->len - tail_len);
+ return 1;
+}
+
static int http_request_reauth(const char *url,
- struct strbuf *type,
void *result, int target,
- int options)
+ struct http_get_options *options)
{
- int ret = http_request(url, type, result, target, options);
+ int ret = http_request(url, result, target, options);
+
+ if (options && options->effective_url && options->base_url) {
+ if (update_url_from_redirect(options->base_url,
+ url, options->effective_url)) {
+ credential_from_url(&http_auth, options->base_url->buf);
+ url = options->effective_url->buf;
+ }
+ }
+
if (ret != HTTP_REAUTH)
return ret;
@@ -924,7 +1039,7 @@ static int http_request_reauth(const char *url,
* 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) {
+ if (options && options->keep_error) {
switch (target) {
case HTTP_REQUEST_STRBUF:
strbuf_reset(result);
@@ -933,15 +1048,17 @@ static int http_request_reauth(const char *url,
die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
}
}
- return http_request(url, type, result, target, options);
+
+ credential_fill(&http_auth);
+
+ return http_request(url, result, target, options);
}
int http_get_strbuf(const char *url,
- struct strbuf *type,
- struct strbuf *result, int options)
+ struct strbuf *result,
+ struct http_get_options *options)
{
- return http_request_reauth(url, type, result,
- HTTP_REQUEST_STRBUF, options);
+ return http_request_reauth(url, result, HTTP_REQUEST_STRBUF, options);
}
/*
@@ -950,7 +1067,8 @@ int http_get_strbuf(const char *url,
* If a previous interrupted download is detected (i.e. a previous temporary
* file is still around) the download is resumed.
*/
-static int http_get_file(const char *url, const char *filename, int options)
+static int http_get_file(const char *url, const char *filename,
+ struct http_get_options *options)
{
int ret;
struct strbuf tmpfile = STRBUF_INIT;
@@ -958,16 +1076,16 @@ static int http_get_file(const char *url, const char *filename, int options)
strbuf_addf(&tmpfile, "%s.temp", filename);
result = fopen(tmpfile.buf, "a");
- if (! result) {
+ if (!result) {
error("Unable to open local file %s", tmpfile.buf);
ret = HTTP_ERROR;
goto cleanup;
}
- ret = http_request_reauth(url, NULL, result, HTTP_REQUEST_FILE, options);
+ ret = http_request_reauth(url, result, HTTP_REQUEST_FILE, options);
fclose(result);
- if ((ret == HTTP_OK) && move_temp_to_file(tmpfile.buf, filename))
+ if (ret == HTTP_OK && move_temp_to_file(tmpfile.buf, filename))
ret = HTTP_ERROR;
cleanup:
strbuf_release(&tmpfile);
@@ -976,16 +1094,19 @@ cleanup:
int http_fetch_ref(const char *base, struct ref *ref)
{
+ struct http_get_options options = {0};
char *url;
struct strbuf buffer = STRBUF_INIT;
int ret = -1;
+ options.no_cache = 1;
+
url = quote_ref_url(base, ref->name);
- if (http_get_strbuf(url, NULL, &buffer, HTTP_NO_CACHE) == HTTP_OK) {
+ if (http_get_strbuf(url, &buffer, &options) == HTTP_OK) {
strbuf_rtrim(&buffer);
if (buffer.len == 40)
ret = get_sha1_hex(buffer.buf, ref->old_sha1);
- else if (!prefixcmp(buffer.buf, "ref: ")) {
+ else if (starts_with(buffer.buf, "ref: ")) {
ref->symref = xstrdup(buffer.buf + 5);
ret = 0;
}
@@ -1012,7 +1133,7 @@ static char *fetch_pack_index(unsigned char *sha1, const char *base_url)
strbuf_addf(&buf, "%s.temp", sha1_pack_index_name(sha1));
tmp = strbuf_detach(&buf, NULL);
- if (http_get_file(url, tmp, 0) != HTTP_OK) {
+ if (http_get_file(url, tmp, NULL) != HTTP_OK) {
error("Unable to get pack index %s", url);
free(tmp);
tmp = NULL;
@@ -1065,6 +1186,7 @@ add_pack:
int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
{
+ struct http_get_options options = {0};
int ret = 0, i = 0;
char *url, *data;
struct strbuf buf = STRBUF_INIT;
@@ -1074,7 +1196,8 @@ int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
strbuf_addstr(&buf, "objects/info/packs");
url = strbuf_detach(&buf, NULL);
- ret = http_get_strbuf(url, NULL, &buf, HTTP_NO_CACHE);
+ options.no_cache = 1;
+ ret = http_get_strbuf(url, &buf, &options);
if (ret != HTTP_OK)
goto cleanup;
@@ -1084,8 +1207,8 @@ int http_get_info_packs(const char *base_url, struct packed_git **packs_head)
case 'P':
i++;
if (i + 52 <= buf.len &&
- !prefixcmp(data + i, " pack-") &&
- !prefixcmp(data + i + 46, ".pack\n")) {
+ starts_with(data + i, " pack-") &&
+ starts_with(data + i + 46, ".pack\n")) {
get_sha1_hex(data + i + 6, sha1);
fetch_and_setup_pack_index(packs_head, sha1,
base_url);
generated by cgit v0.10.2-6-g49f6 at 2024-05-22 14:40:05 (GMT)