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Diffstat (limited to 'http.c')
-rw-r--r--http.c220
1 files changed, 193 insertions, 27 deletions
diff --git a/http.c b/http.c
index 1044f9ba0e..bd0dba23a0 100644
--- a/http.c
+++ b/http.c
@@ -11,6 +11,7 @@
#include "gettext.h"
#include "transport.h"
+static struct trace_key trace_curl = TRACE_KEY_INIT(CURL);
#if LIBCURL_VERSION_NUM >= 0x070a08
long int git_curl_ipresolve = CURL_IPRESOLVE_WHATEVER;
#else
@@ -114,6 +115,7 @@ static unsigned long http_auth_methods = CURLAUTH_ANY;
static struct curl_slist *pragma_header;
static struct curl_slist *no_pragma_header;
+static struct curl_slist *extra_http_headers;
static struct active_request_slot *active_queue_head;
@@ -199,6 +201,13 @@ static void finish_active_slot(struct active_request_slot *slot)
slot->callback_func(slot->callback_data);
}
+static void xmulti_remove_handle(struct active_request_slot *slot)
+{
+#ifdef USE_CURL_MULTI
+ curl_multi_remove_handle(curlm, slot->curl);
+#endif
+}
+
#ifdef USE_CURL_MULTI
static void process_curl_messages(void)
{
@@ -214,7 +223,7 @@ static void process_curl_messages(void)
slot->curl != curl_message->easy_handle)
slot = slot->next;
if (slot != NULL) {
- curl_multi_remove_handle(curlm, slot->curl);
+ xmulti_remove_handle(slot);
slot->curl_result = curl_result;
finish_active_slot(slot);
} else {
@@ -323,13 +332,26 @@ static int http_options(const char *var, const char *value, void *cb)
#endif
}
+ if (!strcmp("http.extraheader", var)) {
+ if (!value) {
+ return config_error_nonbool(var);
+ } else if (!*value) {
+ curl_slist_free_all(extra_http_headers);
+ extra_http_headers = NULL;
+ } else {
+ extra_http_headers =
+ curl_slist_append(extra_http_headers, value);
+ }
+ return 0;
+ }
+
/* 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 || !*http_auth.username) {
if (curl_empty_auth)
curl_easy_setopt(result, CURLOPT_USERPWD, ":");
return;
@@ -446,8 +468,7 @@ static int sockopt_callback(void *client, curl_socket_t fd, curlsocktype type)
rc = setsockopt(fd, SOL_SOCKET, SO_KEEPALIVE, (void *)&ka, len);
if (rc < 0)
- warning("unable to set SO_KEEPALIVE on socket %s",
- strerror(errno));
+ warning_errno("unable to set SO_KEEPALIVE on socket");
return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
}
@@ -464,6 +485,125 @@ static void set_curl_keepalive(CURL *c)
}
#endif
+static void redact_sensitive_header(struct strbuf *header)
+{
+ const char *sensitive_header;
+
+ if (skip_prefix(header->buf, "Authorization:", &sensitive_header) ||
+ skip_prefix(header->buf, "Proxy-Authorization:", &sensitive_header)) {
+ /* The first token is the type, which is OK to log */
+ while (isspace(*sensitive_header))
+ sensitive_header++;
+ while (*sensitive_header && !isspace(*sensitive_header))
+ sensitive_header++;
+ /* Everything else is opaque and possibly sensitive */
+ strbuf_setlen(header, sensitive_header - header->buf);
+ strbuf_addstr(header, " <redacted>");
+ }
+}
+
+static void curl_dump_header(const char *text, unsigned char *ptr, size_t size, int hide_sensitive_header)
+{
+ struct strbuf out = STRBUF_INIT;
+ struct strbuf **headers, **header;
+
+ strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n",
+ text, (long)size, (long)size);
+ trace_strbuf(&trace_curl, &out);
+ strbuf_reset(&out);
+ strbuf_add(&out, ptr, size);
+ headers = strbuf_split_max(&out, '\n', 0);
+
+ for (header = headers; *header; header++) {
+ if (hide_sensitive_header)
+ redact_sensitive_header(*header);
+ strbuf_insert((*header), 0, text, strlen(text));
+ strbuf_insert((*header), strlen(text), ": ", 2);
+ strbuf_rtrim((*header));
+ strbuf_addch((*header), '\n');
+ trace_strbuf(&trace_curl, (*header));
+ }
+ strbuf_list_free(headers);
+ strbuf_release(&out);
+}
+
+static void curl_dump_data(const char *text, unsigned char *ptr, size_t size)
+{
+ size_t i;
+ struct strbuf out = STRBUF_INIT;
+ unsigned int width = 60;
+
+ strbuf_addf(&out, "%s, %10.10ld bytes (0x%8.8lx)\n",
+ text, (long)size, (long)size);
+ trace_strbuf(&trace_curl, &out);
+
+ for (i = 0; i < size; i += width) {
+ size_t w;
+
+ strbuf_reset(&out);
+ strbuf_addf(&out, "%s: ", text);
+ for (w = 0; (w < width) && (i + w < size); w++) {
+ unsigned char ch = ptr[i + w];
+
+ strbuf_addch(&out,
+ (ch >= 0x20) && (ch < 0x80)
+ ? ch : '.');
+ }
+ strbuf_addch(&out, '\n');
+ trace_strbuf(&trace_curl, &out);
+ }
+ strbuf_release(&out);
+}
+
+static int curl_trace(CURL *handle, curl_infotype type, char *data, size_t size, void *userp)
+{
+ const char *text;
+ enum { NO_FILTER = 0, DO_FILTER = 1 };
+
+ switch (type) {
+ case CURLINFO_TEXT:
+ trace_printf_key(&trace_curl, "== Info: %s", data);
+ default: /* we ignore unknown types by default */
+ return 0;
+
+ case CURLINFO_HEADER_OUT:
+ text = "=> Send header";
+ curl_dump_header(text, (unsigned char *)data, size, DO_FILTER);
+ break;
+ case CURLINFO_DATA_OUT:
+ text = "=> Send data";
+ curl_dump_data(text, (unsigned char *)data, size);
+ break;
+ case CURLINFO_SSL_DATA_OUT:
+ text = "=> Send SSL data";
+ curl_dump_data(text, (unsigned char *)data, size);
+ break;
+ case CURLINFO_HEADER_IN:
+ text = "<= Recv header";
+ curl_dump_header(text, (unsigned char *)data, size, NO_FILTER);
+ break;
+ case CURLINFO_DATA_IN:
+ text = "<= Recv data";
+ curl_dump_data(text, (unsigned char *)data, size);
+ break;
+ case CURLINFO_SSL_DATA_IN:
+ text = "<= Recv SSL data";
+ curl_dump_data(text, (unsigned char *)data, size);
+ break;
+ }
+ return 0;
+}
+
+void setup_curl_trace(CURL *handle)
+{
+ if (!trace_want(&trace_curl))
+ return;
+ curl_easy_setopt(handle, CURLOPT_VERBOSE, 1L);
+ curl_easy_setopt(handle, CURLOPT_DEBUGFUNCTION, curl_trace);
+ curl_easy_setopt(handle, CURLOPT_DEBUGDATA, NULL);
+}
+
+
static CURL *get_curl_handle(void)
{
CURL *result = curl_easy_init();
@@ -562,9 +702,9 @@ static CURL *get_curl_handle(void)
warning("protocol restrictions not applied to curl redirects because\n"
"your curl version is too old (>= 7.19.4)");
#endif
-
if (getenv("GIT_CURL_VERBOSE"))
- curl_easy_setopt(result, CURLOPT_VERBOSE, 1);
+ curl_easy_setopt(result, CURLOPT_VERBOSE, 1L);
+ setup_curl_trace(result);
curl_easy_setopt(result, CURLOPT_USERAGENT,
user_agent ? user_agent : git_user_agent());
@@ -590,7 +730,7 @@ static CURL *get_curl_handle(void)
* precedence here, as in CURL.
*/
if (!curl_http_proxy) {
- if (!strcmp(http_auth.protocol, "https")) {
+ if (http_auth.protocol && !strcmp(http_auth.protocol, "https")) {
var_override(&curl_http_proxy, getenv("HTTPS_PROXY"));
var_override(&curl_http_proxy, getenv("https_proxy"));
} else {
@@ -678,8 +818,10 @@ void http_init(struct remote *remote, const char *url, int proactive_auth)
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:");
+ pragma_header = curl_slist_append(http_copy_default_headers(),
+ "Pragma: no-cache");
+ no_pragma_header = curl_slist_append(http_copy_default_headers(),
+ "Pragma:");
#ifdef USE_CURL_MULTI
{
@@ -746,9 +888,7 @@ void http_cleanup(void)
while (slot != NULL) {
struct active_request_slot *next = slot->next;
if (slot->curl != NULL) {
-#ifdef USE_CURL_MULTI
- curl_multi_remove_handle(curlm, slot->curl);
-#endif
+ xmulti_remove_handle(slot);
curl_easy_cleanup(slot->curl);
}
free(slot);
@@ -765,6 +905,9 @@ void http_cleanup(void)
#endif
curl_global_cleanup();
+ curl_slist_free_all(extra_http_headers);
+ extra_http_headers = NULL;
+
curl_slist_free_all(pragma_header);
pragma_header = NULL;
@@ -884,6 +1027,8 @@ int start_active_slot(struct active_request_slot *slot)
if (curlm_result != CURLM_OK &&
curlm_result != CURLM_CALL_MULTI_PERFORM) {
+ warning("curl_multi_add_handle failed: %s",
+ curl_multi_strerror(curlm_result));
active_requests--;
slot->in_use = 0;
return 0;
@@ -1023,13 +1168,13 @@ void run_active_slot(struct active_request_slot *slot)
static void release_active_slot(struct active_request_slot *slot)
{
closedown_active_slot(slot);
- if (slot->curl && curl_session_count > min_curl_sessions) {
-#ifdef USE_CURL_MULTI
- curl_multi_remove_handle(curlm, slot->curl);
-#endif
- curl_easy_cleanup(slot->curl);
- slot->curl = NULL;
- curl_session_count--;
+ if (slot->curl) {
+ xmulti_remove_handle(slot);
+ if (curl_session_count > min_curl_sessions) {
+ curl_easy_cleanup(slot->curl);
+ slot->curl = NULL;
+ curl_session_count--;
+ }
}
#ifdef USE_CURL_MULTI
fill_active_slots();
@@ -1087,7 +1232,7 @@ void append_remote_object_url(struct strbuf *buf, const char *url,
strbuf_addf(buf, "objects/%.*s/", 2, hex);
if (!only_two_digit_prefix)
- strbuf_addf(buf, "%s", hex+2);
+ strbuf_addstr(buf, hex + 2);
}
char *get_remote_object_url(const char *url, const char *hex,
@@ -1163,6 +1308,16 @@ int run_one_slot(struct active_request_slot *slot,
return handle_curl_result(results);
}
+struct curl_slist *http_copy_default_headers(void)
+{
+ struct curl_slist *headers = NULL, *h;
+
+ for (h = extra_http_headers; h; h = h->next)
+ headers = curl_slist_append(headers, h->data);
+
+ return headers;
+}
+
static CURLcode curlinfo_strbuf(CURL *curl, CURLINFO info, struct strbuf *buf)
{
char *ptr;
@@ -1380,7 +1535,7 @@ static int http_request(const char *url,
{
struct active_request_slot *slot;
struct slot_results results;
- struct curl_slist *headers = NULL;
+ struct curl_slist *headers = http_copy_default_headers();
struct strbuf buf = STRBUF_INIT;
const char *accept_language;
int ret;
@@ -1827,8 +1982,19 @@ static size_t fwrite_sha1_file(char *ptr, size_t eltsize, size_t nmemb,
unsigned char expn[4096];
size_t size = eltsize * nmemb;
int posn = 0;
- struct http_object_request *freq =
- (struct http_object_request *)data;
+ struct http_object_request *freq = data;
+ struct active_request_slot *slot = freq->slot;
+
+ if (slot) {
+ CURLcode c = curl_easy_getinfo(slot->curl, CURLINFO_HTTP_CODE,
+ &slot->http_code);
+ if (c != CURLE_OK)
+ die("BUG: curl_easy_getinfo for HTTP code failed: %s",
+ curl_easy_strerror(c));
+ if (slot->http_code >= 400)
+ return size;
+ }
+
do {
ssize_t retval = xwrite(freq->localfile,
(char *) ptr + posn, size - posn);
@@ -1894,8 +2060,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
}
if (freq->localfile < 0) {
- error("Couldn't create temporary file %s: %s",
- freq->tmpfile, strerror(errno));
+ error_errno("Couldn't create temporary file %s", freq->tmpfile);
goto abort;
}
@@ -1940,8 +2105,8 @@ struct http_object_request *new_http_object_request(const char *base_url,
prev_posn = 0;
lseek(freq->localfile, 0, SEEK_SET);
if (ftruncate(freq->localfile, 0) < 0) {
- error("Couldn't truncate temporary file %s: %s",
- freq->tmpfile, strerror(errno));
+ error_errno("Couldn't truncate temporary file %s",
+ freq->tmpfile);
goto abort;
}
}
@@ -1950,6 +2115,7 @@ struct http_object_request *new_http_object_request(const char *base_url,
freq->slot = get_active_slot();
curl_easy_setopt(freq->slot->curl, CURLOPT_FILE, freq);
+ curl_easy_setopt(freq->slot->curl, CURLOPT_FAILONERROR, 0);
curl_easy_setopt(freq->slot->curl, CURLOPT_WRITEFUNCTION, fwrite_sha1_file);
curl_easy_setopt(freq->slot->curl, CURLOPT_ERRORBUFFER, freq->errorstr);
curl_easy_setopt(freq->slot->curl, CURLOPT_URL, freq->url);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-04 17:39:41 +0000