1 #include "git-compat-util.h"
6 #include "run-command.h"
9 #include "credential.h"
13 #include "transport.h"
16 #include "string-list.h"
17 #include "object-store.h"
19 static struct trace_key trace_curl
= TRACE_KEY_INIT(CURL
);
20 static int trace_curl_data
= 1;
21 static int trace_curl_redact
= 1;
22 #if LIBCURL_VERSION_NUM >= 0x070a08
23 long int git_curl_ipresolve
= CURL_IPRESOLVE_WHATEVER
;
25 long int git_curl_ipresolve
;
29 ssize_t http_post_buffer
= 16 * LARGE_PACKET_MAX
;
31 #if LIBCURL_VERSION_NUM >= 0x070a06
32 #define LIBCURL_CAN_HANDLE_AUTH_ANY
35 static int min_curl_sessions
= 1;
36 static int curl_session_count
;
38 static int max_requests
= -1;
41 #ifndef NO_CURL_EASY_DUPHANDLE
42 static CURL
*curl_default
;
45 #define PREV_BUF_SIZE 4096
47 char curl_errorstr
[CURL_ERROR_SIZE
];
49 static int curl_ssl_verify
= -1;
50 static int curl_ssl_try
;
51 static const char *curl_http_version
= NULL
;
52 static const char *ssl_cert
;
53 static const char *ssl_cipherlist
;
54 static const char *ssl_version
;
59 { "sslv2", CURL_SSLVERSION_SSLv2
},
60 { "sslv3", CURL_SSLVERSION_SSLv3
},
61 { "tlsv1", CURL_SSLVERSION_TLSv1
},
62 #if LIBCURL_VERSION_NUM >= 0x072200
63 { "tlsv1.0", CURL_SSLVERSION_TLSv1_0
},
64 { "tlsv1.1", CURL_SSLVERSION_TLSv1_1
},
65 { "tlsv1.2", CURL_SSLVERSION_TLSv1_2
},
67 #if LIBCURL_VERSION_NUM >= 0x073400
68 { "tlsv1.3", CURL_SSLVERSION_TLSv1_3
},
71 #if LIBCURL_VERSION_NUM >= 0x070903
72 static const char *ssl_key
;
74 #if LIBCURL_VERSION_NUM >= 0x070908
75 static const char *ssl_capath
;
77 #if LIBCURL_VERSION_NUM >= 0x071304
78 static const char *curl_no_proxy
;
80 #if LIBCURL_VERSION_NUM >= 0x072c00
81 static const char *ssl_pinnedkey
;
83 static const char *ssl_cainfo
;
84 static long curl_low_speed_limit
= -1;
85 static long curl_low_speed_time
= -1;
86 static int curl_ftp_no_epsv
;
87 static const char *curl_http_proxy
;
88 static const char *http_proxy_authmethod
;
90 static const char *http_proxy_ssl_cert
;
91 static const char *http_proxy_ssl_key
;
92 static const char *http_proxy_ssl_ca_info
;
93 static struct credential proxy_cert_auth
= CREDENTIAL_INIT
;
94 static int proxy_ssl_cert_password_required
;
99 } proxy_authmethods
[] = {
100 { "basic", CURLAUTH_BASIC
},
101 { "digest", CURLAUTH_DIGEST
},
102 { "negotiate", CURLAUTH_GSSNEGOTIATE
},
103 { "ntlm", CURLAUTH_NTLM
},
104 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
105 { "anyauth", CURLAUTH_ANY
},
108 * CURLAUTH_DIGEST_IE has no corresponding command-line option in
109 * curl(1) and is not included in CURLAUTH_ANY, so we leave it out
113 #ifdef CURLGSSAPI_DELEGATION_FLAG
114 static const char *curl_deleg
;
117 long curl_deleg_param
;
118 } curl_deleg_levels
[] = {
119 { "none", CURLGSSAPI_DELEGATION_NONE
},
120 { "policy", CURLGSSAPI_DELEGATION_POLICY_FLAG
},
121 { "always", CURLGSSAPI_DELEGATION_FLAG
},
125 static struct credential proxy_auth
= CREDENTIAL_INIT
;
126 static const char *curl_proxyuserpwd
;
127 static const char *curl_cookie_file
;
128 static int curl_save_cookies
;
129 struct credential http_auth
= CREDENTIAL_INIT
;
130 static int http_proactive_auth
;
131 static const char *user_agent
;
132 static int curl_empty_auth
= -1;
134 enum http_follow_config http_follow_config
= HTTP_FOLLOW_INITIAL
;
136 #if LIBCURL_VERSION_NUM >= 0x071700
137 /* Use CURLOPT_KEYPASSWD as is */
138 #elif LIBCURL_VERSION_NUM >= 0x070903
139 #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
141 #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
144 static struct credential cert_auth
= CREDENTIAL_INIT
;
145 static int ssl_cert_password_required
;
146 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
147 static unsigned long http_auth_methods
= CURLAUTH_ANY
;
148 static int http_auth_methods_restricted
;
149 /* Modes for which empty_auth cannot actually help us. */
150 static unsigned long empty_auth_useless
=
152 #ifdef CURLAUTH_DIGEST_IE
158 static struct curl_slist
*pragma_header
;
159 static struct curl_slist
*no_pragma_header
;
160 static struct string_list extra_http_headers
= STRING_LIST_INIT_DUP
;
162 static struct active_request_slot
*active_queue_head
;
164 static char *cached_accept_language
;
166 static char *http_ssl_backend
;
168 static int http_schannel_check_revoke
= 1;
170 * With the backend being set to `schannel`, setting sslCAinfo would override
171 * the Certificate Store in cURL v7.60.0 and later, which is not what we want
174 static int http_schannel_use_ssl_cainfo
;
176 size_t fread_buffer(char *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
178 size_t size
= eltsize
* nmemb
;
179 struct buffer
*buffer
= buffer_
;
181 if (size
> buffer
->buf
.len
- buffer
->posn
)
182 size
= buffer
->buf
.len
- buffer
->posn
;
183 memcpy(ptr
, buffer
->buf
.buf
+ buffer
->posn
, size
);
184 buffer
->posn
+= size
;
186 return size
/ eltsize
;
190 int seek_buffer(void *clientp
, curl_off_t offset
, int origin
)
192 struct buffer
*buffer
= clientp
;
194 if (origin
!= SEEK_SET
)
195 BUG("seek_buffer only handles SEEK_SET");
196 if (offset
< 0 || offset
>= buffer
->buf
.len
) {
197 error("curl seek would be outside of buffer");
198 return CURL_SEEKFUNC_FAIL
;
201 buffer
->posn
= offset
;
202 return CURL_SEEKFUNC_OK
;
206 size_t fwrite_buffer(char *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
208 size_t size
= eltsize
* nmemb
;
209 struct strbuf
*buffer
= buffer_
;
211 strbuf_add(buffer
, ptr
, size
);
215 size_t fwrite_null(char *ptr
, size_t eltsize
, size_t nmemb
, void *strbuf
)
220 static void closedown_active_slot(struct active_request_slot
*slot
)
226 static void finish_active_slot(struct active_request_slot
*slot
)
228 closedown_active_slot(slot
);
229 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
, &slot
->http_code
);
231 if (slot
->finished
!= NULL
)
232 (*slot
->finished
) = 1;
234 /* Store slot results so they can be read after the slot is reused */
235 if (slot
->results
!= NULL
) {
236 slot
->results
->curl_result
= slot
->curl_result
;
237 slot
->results
->http_code
= slot
->http_code
;
238 #if LIBCURL_VERSION_NUM >= 0x070a08
239 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTPAUTH_AVAIL
,
240 &slot
->results
->auth_avail
);
242 slot
->results
->auth_avail
= 0;
245 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CONNECTCODE
,
246 &slot
->results
->http_connectcode
);
249 /* Run callback if appropriate */
250 if (slot
->callback_func
!= NULL
)
251 slot
->callback_func(slot
->callback_data
);
254 static void xmulti_remove_handle(struct active_request_slot
*slot
)
256 #ifdef USE_CURL_MULTI
257 curl_multi_remove_handle(curlm
, slot
->curl
);
261 #ifdef USE_CURL_MULTI
262 static void process_curl_messages(void)
265 struct active_request_slot
*slot
;
266 CURLMsg
*curl_message
= curl_multi_info_read(curlm
, &num_messages
);
268 while (curl_message
!= NULL
) {
269 if (curl_message
->msg
== CURLMSG_DONE
) {
270 int curl_result
= curl_message
->data
.result
;
271 slot
= active_queue_head
;
272 while (slot
!= NULL
&&
273 slot
->curl
!= curl_message
->easy_handle
)
276 xmulti_remove_handle(slot
);
277 slot
->curl_result
= curl_result
;
278 finish_active_slot(slot
);
280 fprintf(stderr
, "Received DONE message for unknown request!\n");
283 fprintf(stderr
, "Unknown CURL message received: %d\n",
284 (int)curl_message
->msg
);
286 curl_message
= curl_multi_info_read(curlm
, &num_messages
);
291 static int http_options(const char *var
, const char *value
, void *cb
)
293 if (!strcmp("http.version", var
)) {
294 return git_config_string(&curl_http_version
, var
, value
);
296 if (!strcmp("http.sslverify", var
)) {
297 curl_ssl_verify
= git_config_bool(var
, value
);
300 if (!strcmp("http.sslcipherlist", var
))
301 return git_config_string(&ssl_cipherlist
, var
, value
);
302 if (!strcmp("http.sslversion", var
))
303 return git_config_string(&ssl_version
, var
, value
);
304 if (!strcmp("http.sslcert", var
))
305 return git_config_pathname(&ssl_cert
, var
, value
);
306 #if LIBCURL_VERSION_NUM >= 0x070903
307 if (!strcmp("http.sslkey", var
))
308 return git_config_pathname(&ssl_key
, var
, value
);
310 #if LIBCURL_VERSION_NUM >= 0x070908
311 if (!strcmp("http.sslcapath", var
))
312 return git_config_pathname(&ssl_capath
, var
, value
);
314 if (!strcmp("http.sslcainfo", var
))
315 return git_config_pathname(&ssl_cainfo
, var
, value
);
316 if (!strcmp("http.sslcertpasswordprotected", var
)) {
317 ssl_cert_password_required
= git_config_bool(var
, value
);
320 if (!strcmp("http.ssltry", var
)) {
321 curl_ssl_try
= git_config_bool(var
, value
);
324 if (!strcmp("http.sslbackend", var
)) {
325 free(http_ssl_backend
);
326 http_ssl_backend
= xstrdup_or_null(value
);
330 if (!strcmp("http.schannelcheckrevoke", var
)) {
331 http_schannel_check_revoke
= git_config_bool(var
, value
);
335 if (!strcmp("http.schannelusesslcainfo", var
)) {
336 http_schannel_use_ssl_cainfo
= git_config_bool(var
, value
);
340 if (!strcmp("http.minsessions", var
)) {
341 min_curl_sessions
= git_config_int(var
, value
);
342 #ifndef USE_CURL_MULTI
343 if (min_curl_sessions
> 1)
344 min_curl_sessions
= 1;
348 #ifdef USE_CURL_MULTI
349 if (!strcmp("http.maxrequests", var
)) {
350 max_requests
= git_config_int(var
, value
);
354 if (!strcmp("http.lowspeedlimit", var
)) {
355 curl_low_speed_limit
= (long)git_config_int(var
, value
);
358 if (!strcmp("http.lowspeedtime", var
)) {
359 curl_low_speed_time
= (long)git_config_int(var
, value
);
363 if (!strcmp("http.noepsv", var
)) {
364 curl_ftp_no_epsv
= git_config_bool(var
, value
);
367 if (!strcmp("http.proxy", var
))
368 return git_config_string(&curl_http_proxy
, var
, value
);
370 if (!strcmp("http.proxyauthmethod", var
))
371 return git_config_string(&http_proxy_authmethod
, var
, value
);
373 if (!strcmp("http.proxysslcert", var
))
374 return git_config_string(&http_proxy_ssl_cert
, var
, value
);
376 if (!strcmp("http.proxysslkey", var
))
377 return git_config_string(&http_proxy_ssl_key
, var
, value
);
379 if (!strcmp("http.proxysslcainfo", var
))
380 return git_config_string(&http_proxy_ssl_ca_info
, var
, value
);
382 if (!strcmp("http.proxysslcertpasswordprotected", var
)) {
383 proxy_ssl_cert_password_required
= git_config_bool(var
, value
);
387 if (!strcmp("http.cookiefile", var
))
388 return git_config_pathname(&curl_cookie_file
, var
, value
);
389 if (!strcmp("http.savecookies", var
)) {
390 curl_save_cookies
= git_config_bool(var
, value
);
394 if (!strcmp("http.postbuffer", var
)) {
395 http_post_buffer
= git_config_ssize_t(var
, value
);
396 if (http_post_buffer
< 0)
397 warning(_("negative value for http.postbuffer; defaulting to %d"), LARGE_PACKET_MAX
);
398 if (http_post_buffer
< LARGE_PACKET_MAX
)
399 http_post_buffer
= LARGE_PACKET_MAX
;
403 if (!strcmp("http.useragent", var
))
404 return git_config_string(&user_agent
, var
, value
);
406 if (!strcmp("http.emptyauth", var
)) {
407 if (value
&& !strcmp("auto", value
))
408 curl_empty_auth
= -1;
410 curl_empty_auth
= git_config_bool(var
, value
);
414 if (!strcmp("http.delegation", var
)) {
415 #ifdef CURLGSSAPI_DELEGATION_FLAG
416 return git_config_string(&curl_deleg
, var
, value
);
418 warning(_("Delegation control is not supported with cURL < 7.22.0"));
423 if (!strcmp("http.pinnedpubkey", var
)) {
424 #if LIBCURL_VERSION_NUM >= 0x072c00
425 return git_config_pathname(&ssl_pinnedkey
, var
, value
);
427 warning(_("Public key pinning not supported with cURL < 7.44.0"));
432 if (!strcmp("http.extraheader", var
)) {
434 return config_error_nonbool(var
);
435 } else if (!*value
) {
436 string_list_clear(&extra_http_headers
, 0);
438 string_list_append(&extra_http_headers
, value
);
443 if (!strcmp("http.followredirects", var
)) {
444 if (value
&& !strcmp(value
, "initial"))
445 http_follow_config
= HTTP_FOLLOW_INITIAL
;
446 else if (git_config_bool(var
, value
))
447 http_follow_config
= HTTP_FOLLOW_ALWAYS
;
449 http_follow_config
= HTTP_FOLLOW_NONE
;
453 /* Fall back on the default ones */
454 return git_default_config(var
, value
, cb
);
457 static int curl_empty_auth_enabled(void)
459 if (curl_empty_auth
>= 0)
460 return curl_empty_auth
;
462 #ifndef LIBCURL_CAN_HANDLE_AUTH_ANY
464 * Our libcurl is too old to do AUTH_ANY in the first place;
465 * just default to turning the feature off.
469 * In the automatic case, kick in the empty-auth
470 * hack as long as we would potentially try some
471 * method more exotic than "Basic" or "Digest".
473 * But only do this when this is our second or
474 * subsequent request, as by then we know what
475 * methods are available.
477 if (http_auth_methods_restricted
&&
478 (http_auth_methods
& ~empty_auth_useless
))
484 static void init_curl_http_auth(CURL
*result
)
486 if (!http_auth
.username
|| !*http_auth
.username
) {
487 if (curl_empty_auth_enabled())
488 curl_easy_setopt(result
, CURLOPT_USERPWD
, ":");
492 credential_fill(&http_auth
);
494 #if LIBCURL_VERSION_NUM >= 0x071301
495 curl_easy_setopt(result
, CURLOPT_USERNAME
, http_auth
.username
);
496 curl_easy_setopt(result
, CURLOPT_PASSWORD
, http_auth
.password
);
499 static struct strbuf up
= STRBUF_INIT
;
501 * Note that we assume we only ever have a single set of
502 * credentials in a given program run, so we do not have
503 * to worry about updating this buffer, only setting its
507 strbuf_addf(&up
, "%s:%s",
508 http_auth
.username
, http_auth
.password
);
509 curl_easy_setopt(result
, CURLOPT_USERPWD
, up
.buf
);
514 /* *var must be free-able */
515 static void var_override(const char **var
, char *value
)
519 *var
= xstrdup(value
);
523 static void set_proxyauth_name_password(CURL
*result
)
525 #if LIBCURL_VERSION_NUM >= 0x071301
526 curl_easy_setopt(result
, CURLOPT_PROXYUSERNAME
,
527 proxy_auth
.username
);
528 curl_easy_setopt(result
, CURLOPT_PROXYPASSWORD
,
529 proxy_auth
.password
);
531 struct strbuf s
= STRBUF_INIT
;
533 strbuf_addstr_urlencode(&s
, proxy_auth
.username
,
534 is_rfc3986_unreserved
);
535 strbuf_addch(&s
, ':');
536 strbuf_addstr_urlencode(&s
, proxy_auth
.password
,
537 is_rfc3986_unreserved
);
538 curl_proxyuserpwd
= strbuf_detach(&s
, NULL
);
539 curl_easy_setopt(result
, CURLOPT_PROXYUSERPWD
, curl_proxyuserpwd
);
543 static void init_curl_proxy_auth(CURL
*result
)
545 if (proxy_auth
.username
) {
546 if (!proxy_auth
.password
)
547 credential_fill(&proxy_auth
);
548 set_proxyauth_name_password(result
);
551 var_override(&http_proxy_authmethod
, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
553 #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
554 if (http_proxy_authmethod
) {
556 for (i
= 0; i
< ARRAY_SIZE(proxy_authmethods
); i
++) {
557 if (!strcmp(http_proxy_authmethod
, proxy_authmethods
[i
].name
)) {
558 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
,
559 proxy_authmethods
[i
].curlauth_param
);
563 if (i
== ARRAY_SIZE(proxy_authmethods
)) {
564 warning("unsupported proxy authentication method %s: using anyauth",
565 http_proxy_authmethod
);
566 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
570 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
574 static int has_cert_password(void)
576 if (ssl_cert
== NULL
|| ssl_cert_password_required
!= 1)
578 if (!cert_auth
.password
) {
579 cert_auth
.protocol
= xstrdup("cert");
580 cert_auth
.host
= xstrdup("");
581 cert_auth
.username
= xstrdup("");
582 cert_auth
.path
= xstrdup(ssl_cert
);
583 credential_fill(&cert_auth
);
588 #if LIBCURL_VERSION_NUM >= 0x073400
589 static int has_proxy_cert_password(void)
591 if (http_proxy_ssl_cert
== NULL
|| proxy_ssl_cert_password_required
!= 1)
593 if (!proxy_cert_auth
.password
) {
594 proxy_cert_auth
.protocol
= xstrdup("cert");
595 proxy_cert_auth
.host
= xstrdup("");
596 proxy_cert_auth
.username
= xstrdup("");
597 proxy_cert_auth
.path
= xstrdup(http_proxy_ssl_cert
);
598 credential_fill(&proxy_cert_auth
);
604 #if LIBCURL_VERSION_NUM >= 0x071900
605 static void set_curl_keepalive(CURL
*c
)
607 curl_easy_setopt(c
, CURLOPT_TCP_KEEPALIVE
, 1);
610 #elif LIBCURL_VERSION_NUM >= 0x071000
611 static int sockopt_callback(void *client
, curl_socket_t fd
, curlsocktype type
)
615 socklen_t len
= (socklen_t
)sizeof(ka
);
617 if (type
!= CURLSOCKTYPE_IPCXN
)
620 rc
= setsockopt(fd
, SOL_SOCKET
, SO_KEEPALIVE
, (void *)&ka
, len
);
622 warning_errno("unable to set SO_KEEPALIVE on socket");
624 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
627 static void set_curl_keepalive(CURL
*c
)
629 curl_easy_setopt(c
, CURLOPT_SOCKOPTFUNCTION
, sockopt_callback
);
633 static void set_curl_keepalive(CURL
*c
)
635 /* not supported on older curl versions */
639 static void redact_sensitive_header(struct strbuf
*header
)
641 const char *sensitive_header
;
643 if (trace_curl_redact
&&
644 (skip_prefix(header
->buf
, "Authorization:", &sensitive_header
) ||
645 skip_prefix(header
->buf
, "Proxy-Authorization:", &sensitive_header
))) {
646 /* The first token is the type, which is OK to log */
647 while (isspace(*sensitive_header
))
649 while (*sensitive_header
&& !isspace(*sensitive_header
))
651 /* Everything else is opaque and possibly sensitive */
652 strbuf_setlen(header
, sensitive_header
- header
->buf
);
653 strbuf_addstr(header
, " <redacted>");
654 } else if (trace_curl_redact
&&
655 skip_prefix(header
->buf
, "Cookie:", &sensitive_header
)) {
656 struct strbuf redacted_header
= STRBUF_INIT
;
659 while (isspace(*sensitive_header
))
662 cookie
= sensitive_header
;
666 char *semicolon
= strstr(cookie
, "; ");
669 equals
= strchrnul(cookie
, '=');
671 /* invalid cookie, just append and continue */
672 strbuf_addstr(&redacted_header
, cookie
);
675 strbuf_add(&redacted_header
, cookie
, equals
- cookie
);
676 strbuf_addstr(&redacted_header
, "=<redacted>");
679 * There are more cookies. (Or, for some
680 * reason, the input string ends in "; ".)
682 strbuf_addstr(&redacted_header
, "; ");
683 cookie
= semicolon
+ strlen("; ");
689 strbuf_setlen(header
, sensitive_header
- header
->buf
);
690 strbuf_addbuf(header
, &redacted_header
);
694 static void curl_dump_header(const char *text
, unsigned char *ptr
, size_t size
, int hide_sensitive_header
)
696 struct strbuf out
= STRBUF_INIT
;
697 struct strbuf
**headers
, **header
;
699 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
700 text
, (long)size
, (long)size
);
701 trace_strbuf(&trace_curl
, &out
);
703 strbuf_add(&out
, ptr
, size
);
704 headers
= strbuf_split_max(&out
, '\n', 0);
706 for (header
= headers
; *header
; header
++) {
707 if (hide_sensitive_header
)
708 redact_sensitive_header(*header
);
709 strbuf_insertstr((*header
), 0, text
);
710 strbuf_insertstr((*header
), strlen(text
), ": ");
711 strbuf_rtrim((*header
));
712 strbuf_addch((*header
), '\n');
713 trace_strbuf(&trace_curl
, (*header
));
715 strbuf_list_free(headers
);
716 strbuf_release(&out
);
719 static void curl_dump_data(const char *text
, unsigned char *ptr
, size_t size
)
722 struct strbuf out
= STRBUF_INIT
;
723 unsigned int width
= 60;
725 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
726 text
, (long)size
, (long)size
);
727 trace_strbuf(&trace_curl
, &out
);
729 for (i
= 0; i
< size
; i
+= width
) {
733 strbuf_addf(&out
, "%s: ", text
);
734 for (w
= 0; (w
< width
) && (i
+ w
< size
); w
++) {
735 unsigned char ch
= ptr
[i
+ w
];
738 (ch
>= 0x20) && (ch
< 0x80)
741 strbuf_addch(&out
, '\n');
742 trace_strbuf(&trace_curl
, &out
);
744 strbuf_release(&out
);
747 static int curl_trace(CURL
*handle
, curl_infotype type
, char *data
, size_t size
, void *userp
)
750 enum { NO_FILTER
= 0, DO_FILTER
= 1 };
754 trace_printf_key(&trace_curl
, "== Info: %s", data
);
756 case CURLINFO_HEADER_OUT
:
757 text
= "=> Send header";
758 curl_dump_header(text
, (unsigned char *)data
, size
, DO_FILTER
);
760 case CURLINFO_DATA_OUT
:
761 if (trace_curl_data
) {
762 text
= "=> Send data";
763 curl_dump_data(text
, (unsigned char *)data
, size
);
766 case CURLINFO_SSL_DATA_OUT
:
767 if (trace_curl_data
) {
768 text
= "=> Send SSL data";
769 curl_dump_data(text
, (unsigned char *)data
, size
);
772 case CURLINFO_HEADER_IN
:
773 text
= "<= Recv header";
774 curl_dump_header(text
, (unsigned char *)data
, size
, NO_FILTER
);
776 case CURLINFO_DATA_IN
:
777 if (trace_curl_data
) {
778 text
= "<= Recv data";
779 curl_dump_data(text
, (unsigned char *)data
, size
);
782 case CURLINFO_SSL_DATA_IN
:
783 if (trace_curl_data
) {
784 text
= "<= Recv SSL data";
785 curl_dump_data(text
, (unsigned char *)data
, size
);
789 default: /* we ignore unknown types by default */
795 void http_trace_curl_no_data(void)
797 trace_override_envvar(&trace_curl
, "1");
801 void setup_curl_trace(CURL
*handle
)
803 if (!trace_want(&trace_curl
))
805 curl_easy_setopt(handle
, CURLOPT_VERBOSE
, 1L);
806 curl_easy_setopt(handle
, CURLOPT_DEBUGFUNCTION
, curl_trace
);
807 curl_easy_setopt(handle
, CURLOPT_DEBUGDATA
, NULL
);
810 #ifdef CURLPROTO_HTTP
811 static void proto_list_append(struct strbuf
*list
, const char *proto
)
816 strbuf_addch(list
, ',');
817 strbuf_addstr(list
, proto
);
820 static long get_curl_allowed_protocols(int from_user
, struct strbuf
*list
)
824 if (is_transport_allowed("http", from_user
)) {
825 bits
|= CURLPROTO_HTTP
;
826 proto_list_append(list
, "http");
828 if (is_transport_allowed("https", from_user
)) {
829 bits
|= CURLPROTO_HTTPS
;
830 proto_list_append(list
, "https");
832 if (is_transport_allowed("ftp", from_user
)) {
833 bits
|= CURLPROTO_FTP
;
834 proto_list_append(list
, "ftp");
836 if (is_transport_allowed("ftps", from_user
)) {
837 bits
|= CURLPROTO_FTPS
;
838 proto_list_append(list
, "ftps");
845 #if LIBCURL_VERSION_NUM >=0x072f00
846 static int get_curl_http_version_opt(const char *version_string
, long *opt
)
853 { "HTTP/1.1", CURL_HTTP_VERSION_1_1
},
854 { "HTTP/2", CURL_HTTP_VERSION_2
}
857 for (i
= 0; i
< ARRAY_SIZE(choice
); i
++) {
858 if (!strcmp(version_string
, choice
[i
].name
)) {
859 *opt
= choice
[i
].opt_token
;
864 warning("unknown value given to http.version: '%s'", version_string
);
865 return -1; /* not found */
870 static CURL
*get_curl_handle(void)
872 CURL
*result
= curl_easy_init();
875 die("curl_easy_init failed");
877 if (!curl_ssl_verify
) {
878 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 0);
879 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 0);
881 /* Verify authenticity of the peer's certificate */
882 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 1);
883 /* The name in the cert must match whom we tried to connect */
884 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 2);
887 #if LIBCURL_VERSION_NUM >= 0x072f00 // 7.47.0
888 if (curl_http_version
) {
890 if (!get_curl_http_version_opt(curl_http_version
, &opt
)) {
891 /* Set request use http version */
892 curl_easy_setopt(result
, CURLOPT_HTTP_VERSION
, opt
);
897 #if LIBCURL_VERSION_NUM >= 0x070907
898 curl_easy_setopt(result
, CURLOPT_NETRC
, CURL_NETRC_OPTIONAL
);
900 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
901 curl_easy_setopt(result
, CURLOPT_HTTPAUTH
, CURLAUTH_ANY
);
904 #ifdef CURLGSSAPI_DELEGATION_FLAG
907 for (i
= 0; i
< ARRAY_SIZE(curl_deleg_levels
); i
++) {
908 if (!strcmp(curl_deleg
, curl_deleg_levels
[i
].name
)) {
909 curl_easy_setopt(result
, CURLOPT_GSSAPI_DELEGATION
,
910 curl_deleg_levels
[i
].curl_deleg_param
);
914 if (i
== ARRAY_SIZE(curl_deleg_levels
))
915 warning("Unknown delegation method '%s': using default",
920 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
921 !http_schannel_check_revoke
) {
922 #if LIBCURL_VERSION_NUM >= 0x072c00
923 curl_easy_setopt(result
, CURLOPT_SSL_OPTIONS
, CURLSSLOPT_NO_REVOKE
);
925 warning(_("CURLSSLOPT_NO_REVOKE not supported with cURL < 7.44.0"));
929 if (http_proactive_auth
)
930 init_curl_http_auth(result
);
932 if (getenv("GIT_SSL_VERSION"))
933 ssl_version
= getenv("GIT_SSL_VERSION");
934 if (ssl_version
&& *ssl_version
) {
936 for (i
= 0; i
< ARRAY_SIZE(sslversions
); i
++) {
937 if (!strcmp(ssl_version
, sslversions
[i
].name
)) {
938 curl_easy_setopt(result
, CURLOPT_SSLVERSION
,
939 sslversions
[i
].ssl_version
);
943 if (i
== ARRAY_SIZE(sslversions
))
944 warning("unsupported ssl version %s: using default",
948 if (getenv("GIT_SSL_CIPHER_LIST"))
949 ssl_cipherlist
= getenv("GIT_SSL_CIPHER_LIST");
950 if (ssl_cipherlist
!= NULL
&& *ssl_cipherlist
)
951 curl_easy_setopt(result
, CURLOPT_SSL_CIPHER_LIST
,
954 if (ssl_cert
!= NULL
)
955 curl_easy_setopt(result
, CURLOPT_SSLCERT
, ssl_cert
);
956 if (has_cert_password())
957 curl_easy_setopt(result
, CURLOPT_KEYPASSWD
, cert_auth
.password
);
958 #if LIBCURL_VERSION_NUM >= 0x070903
960 curl_easy_setopt(result
, CURLOPT_SSLKEY
, ssl_key
);
962 #if LIBCURL_VERSION_NUM >= 0x070908
963 if (ssl_capath
!= NULL
)
964 curl_easy_setopt(result
, CURLOPT_CAPATH
, ssl_capath
);
966 #if LIBCURL_VERSION_NUM >= 0x072c00
967 if (ssl_pinnedkey
!= NULL
)
968 curl_easy_setopt(result
, CURLOPT_PINNEDPUBLICKEY
, ssl_pinnedkey
);
970 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
971 !http_schannel_use_ssl_cainfo
) {
972 curl_easy_setopt(result
, CURLOPT_CAINFO
, NULL
);
973 #if LIBCURL_VERSION_NUM >= 0x073400
974 curl_easy_setopt(result
, CURLOPT_PROXY_CAINFO
, NULL
);
976 } else if (ssl_cainfo
!= NULL
|| http_proxy_ssl_ca_info
!= NULL
) {
977 if (ssl_cainfo
!= NULL
)
978 curl_easy_setopt(result
, CURLOPT_CAINFO
, ssl_cainfo
);
979 #if LIBCURL_VERSION_NUM >= 0x073400
980 if (http_proxy_ssl_ca_info
!= NULL
)
981 curl_easy_setopt(result
, CURLOPT_PROXY_CAINFO
, http_proxy_ssl_ca_info
);
985 if (curl_low_speed_limit
> 0 && curl_low_speed_time
> 0) {
986 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_LIMIT
,
987 curl_low_speed_limit
);
988 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_TIME
,
989 curl_low_speed_time
);
992 curl_easy_setopt(result
, CURLOPT_MAXREDIRS
, 20);
993 #if LIBCURL_VERSION_NUM >= 0x071301
994 curl_easy_setopt(result
, CURLOPT_POSTREDIR
, CURL_REDIR_POST_ALL
);
995 #elif LIBCURL_VERSION_NUM >= 0x071101
996 curl_easy_setopt(result
, CURLOPT_POST301
, 1);
998 #ifdef CURLPROTO_HTTP
999 #if LIBCURL_VERSION_NUM >= 0x075500
1001 struct strbuf buf
= STRBUF_INIT
;
1003 get_curl_allowed_protocols(0, &buf
);
1004 curl_easy_setopt(result
, CURLOPT_REDIR_PROTOCOLS_STR
, buf
.buf
);
1007 get_curl_allowed_protocols(-1, &buf
);
1008 curl_easy_setopt(result
, CURLOPT_PROTOCOLS_STR
, buf
.buf
);
1009 strbuf_release(&buf
);
1012 curl_easy_setopt(result
, CURLOPT_REDIR_PROTOCOLS
,
1013 get_curl_allowed_protocols(0, NULL
));
1014 curl_easy_setopt(result
, CURLOPT_PROTOCOLS
,
1015 get_curl_allowed_protocols(-1, NULL
));
1018 warning(_("Protocol restrictions not supported with cURL < 7.19.4"));
1020 if (getenv("GIT_CURL_VERBOSE"))
1021 http_trace_curl_no_data();
1022 setup_curl_trace(result
);
1023 if (getenv("GIT_TRACE_CURL_NO_DATA"))
1024 trace_curl_data
= 0;
1025 if (!git_env_bool("GIT_TRACE_REDACT", 1))
1026 trace_curl_redact
= 0;
1028 curl_easy_setopt(result
, CURLOPT_USERAGENT
,
1029 user_agent
? user_agent
: git_user_agent());
1031 if (curl_ftp_no_epsv
)
1032 curl_easy_setopt(result
, CURLOPT_FTP_USE_EPSV
, 0);
1034 #ifdef CURLOPT_USE_SSL
1036 curl_easy_setopt(result
, CURLOPT_USE_SSL
, CURLUSESSL_TRY
);
1040 * CURL also examines these variables as a fallback; but we need to query
1041 * them here in order to decide whether to prompt for missing password (cf.
1042 * init_curl_proxy_auth()).
1044 * Unlike many other common environment variables, these are historically
1045 * lowercase only. It appears that CURL did not know this and implemented
1046 * only uppercase variants, which was later corrected to take both - with
1047 * the exception of http_proxy, which is lowercase only also in CURL. As
1048 * the lowercase versions are the historical quasi-standard, they take
1049 * precedence here, as in CURL.
1051 if (!curl_http_proxy
) {
1052 if (http_auth
.protocol
&& !strcmp(http_auth
.protocol
, "https")) {
1053 var_override(&curl_http_proxy
, getenv("HTTPS_PROXY"));
1054 var_override(&curl_http_proxy
, getenv("https_proxy"));
1056 var_override(&curl_http_proxy
, getenv("http_proxy"));
1058 if (!curl_http_proxy
) {
1059 var_override(&curl_http_proxy
, getenv("ALL_PROXY"));
1060 var_override(&curl_http_proxy
, getenv("all_proxy"));
1064 if (curl_http_proxy
&& curl_http_proxy
[0] == '\0') {
1066 * Handle case with the empty http.proxy value here to keep
1067 * common code clean.
1068 * NB: empty option disables proxying at all.
1070 curl_easy_setopt(result
, CURLOPT_PROXY
, "");
1071 } else if (curl_http_proxy
) {
1072 #if LIBCURL_VERSION_NUM >= 0x071800
1073 if (starts_with(curl_http_proxy
, "socks5h"))
1074 curl_easy_setopt(result
,
1075 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5_HOSTNAME
);
1076 else if (starts_with(curl_http_proxy
, "socks5"))
1077 curl_easy_setopt(result
,
1078 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5
);
1079 else if (starts_with(curl_http_proxy
, "socks4a"))
1080 curl_easy_setopt(result
,
1081 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4A
);
1082 else if (starts_with(curl_http_proxy
, "socks"))
1083 curl_easy_setopt(result
,
1084 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4
);
1086 #if LIBCURL_VERSION_NUM >= 0x073400
1087 else if (starts_with(curl_http_proxy
, "https")) {
1088 curl_easy_setopt(result
, CURLOPT_PROXYTYPE
, CURLPROXY_HTTPS
);
1090 if (http_proxy_ssl_cert
)
1091 curl_easy_setopt(result
, CURLOPT_PROXY_SSLCERT
, http_proxy_ssl_cert
);
1093 if (http_proxy_ssl_key
)
1094 curl_easy_setopt(result
, CURLOPT_PROXY_SSLKEY
, http_proxy_ssl_key
);
1096 if (has_proxy_cert_password())
1097 curl_easy_setopt(result
, CURLOPT_PROXY_KEYPASSWD
, proxy_cert_auth
.password
);
1100 if (strstr(curl_http_proxy
, "://"))
1101 credential_from_url(&proxy_auth
, curl_http_proxy
);
1103 struct strbuf url
= STRBUF_INIT
;
1104 strbuf_addf(&url
, "http://%s", curl_http_proxy
);
1105 credential_from_url(&proxy_auth
, url
.buf
);
1106 strbuf_release(&url
);
1109 if (!proxy_auth
.host
)
1110 die("Invalid proxy URL '%s'", curl_http_proxy
);
1112 curl_easy_setopt(result
, CURLOPT_PROXY
, proxy_auth
.host
);
1113 #if LIBCURL_VERSION_NUM >= 0x071304
1114 var_override(&curl_no_proxy
, getenv("NO_PROXY"));
1115 var_override(&curl_no_proxy
, getenv("no_proxy"));
1116 curl_easy_setopt(result
, CURLOPT_NOPROXY
, curl_no_proxy
);
1119 init_curl_proxy_auth(result
);
1121 set_curl_keepalive(result
);
1126 static void set_from_env(const char **var
, const char *envname
)
1128 const char *val
= getenv(envname
);
1133 void http_init(struct remote
*remote
, const char *url
, int proactive_auth
)
1135 char *low_speed_limit
;
1136 char *low_speed_time
;
1137 char *normalized_url
;
1138 struct urlmatch_config config
= { STRING_LIST_INIT_DUP
};
1140 config
.section
= "http";
1142 config
.collect_fn
= http_options
;
1143 config
.cascade_fn
= git_default_config
;
1146 http_is_verbose
= 0;
1147 normalized_url
= url_normalize(url
, &config
.url
);
1149 git_config(urlmatch_config_entry
, &config
);
1150 free(normalized_url
);
1151 string_list_clear(&config
.vars
, 1);
1153 #if LIBCURL_VERSION_NUM >= 0x073800
1154 if (http_ssl_backend
) {
1155 const curl_ssl_backend
**backends
;
1156 struct strbuf buf
= STRBUF_INIT
;
1159 switch (curl_global_sslset(-1, http_ssl_backend
, &backends
)) {
1160 case CURLSSLSET_UNKNOWN_BACKEND
:
1161 strbuf_addf(&buf
, _("Unsupported SSL backend '%s'. "
1162 "Supported SSL backends:"),
1164 for (i
= 0; backends
[i
]; i
++)
1165 strbuf_addf(&buf
, "\n\t%s", backends
[i
]->name
);
1167 case CURLSSLSET_NO_BACKENDS
:
1168 die(_("Could not set SSL backend to '%s': "
1169 "cURL was built without SSL backends"),
1171 case CURLSSLSET_TOO_LATE
:
1172 die(_("Could not set SSL backend to '%s': already set"),
1180 if (curl_global_init(CURL_GLOBAL_ALL
) != CURLE_OK
)
1181 die("curl_global_init failed");
1183 http_proactive_auth
= proactive_auth
;
1185 if (remote
&& remote
->http_proxy
)
1186 curl_http_proxy
= xstrdup(remote
->http_proxy
);
1189 var_override(&http_proxy_authmethod
, remote
->http_proxy_authmethod
);
1191 pragma_header
= curl_slist_append(http_copy_default_headers(),
1192 "Pragma: no-cache");
1193 no_pragma_header
= curl_slist_append(http_copy_default_headers(),
1196 #ifdef USE_CURL_MULTI
1198 char *http_max_requests
= getenv("GIT_HTTP_MAX_REQUESTS");
1199 if (http_max_requests
!= NULL
)
1200 max_requests
= atoi(http_max_requests
);
1203 curlm
= curl_multi_init();
1205 die("curl_multi_init failed");
1208 if (getenv("GIT_SSL_NO_VERIFY"))
1209 curl_ssl_verify
= 0;
1211 set_from_env(&ssl_cert
, "GIT_SSL_CERT");
1212 #if LIBCURL_VERSION_NUM >= 0x070903
1213 set_from_env(&ssl_key
, "GIT_SSL_KEY");
1215 #if LIBCURL_VERSION_NUM >= 0x070908
1216 set_from_env(&ssl_capath
, "GIT_SSL_CAPATH");
1218 set_from_env(&ssl_cainfo
, "GIT_SSL_CAINFO");
1220 set_from_env(&user_agent
, "GIT_HTTP_USER_AGENT");
1222 low_speed_limit
= getenv("GIT_HTTP_LOW_SPEED_LIMIT");
1223 if (low_speed_limit
!= NULL
)
1224 curl_low_speed_limit
= strtol(low_speed_limit
, NULL
, 10);
1225 low_speed_time
= getenv("GIT_HTTP_LOW_SPEED_TIME");
1226 if (low_speed_time
!= NULL
)
1227 curl_low_speed_time
= strtol(low_speed_time
, NULL
, 10);
1229 if (curl_ssl_verify
== -1)
1230 curl_ssl_verify
= 1;
1232 curl_session_count
= 0;
1233 #ifdef USE_CURL_MULTI
1234 if (max_requests
< 1)
1235 max_requests
= DEFAULT_MAX_REQUESTS
;
1238 set_from_env(&http_proxy_ssl_cert
, "GIT_PROXY_SSL_CERT");
1239 set_from_env(&http_proxy_ssl_key
, "GIT_PROXY_SSL_KEY");
1240 set_from_env(&http_proxy_ssl_ca_info
, "GIT_PROXY_SSL_CAINFO");
1242 if (getenv("GIT_PROXY_SSL_CERT_PASSWORD_PROTECTED"))
1243 proxy_ssl_cert_password_required
= 1;
1245 if (getenv("GIT_CURL_FTP_NO_EPSV"))
1246 curl_ftp_no_epsv
= 1;
1249 credential_from_url(&http_auth
, url
);
1250 if (!ssl_cert_password_required
&&
1251 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
1252 starts_with(url
, "https://"))
1253 ssl_cert_password_required
= 1;
1256 #ifndef NO_CURL_EASY_DUPHANDLE
1257 curl_default
= get_curl_handle();
1261 void http_cleanup(void)
1263 struct active_request_slot
*slot
= active_queue_head
;
1265 while (slot
!= NULL
) {
1266 struct active_request_slot
*next
= slot
->next
;
1267 if (slot
->curl
!= NULL
) {
1268 xmulti_remove_handle(slot
);
1269 curl_easy_cleanup(slot
->curl
);
1274 active_queue_head
= NULL
;
1276 #ifndef NO_CURL_EASY_DUPHANDLE
1277 curl_easy_cleanup(curl_default
);
1280 #ifdef USE_CURL_MULTI
1281 curl_multi_cleanup(curlm
);
1283 curl_global_cleanup();
1285 string_list_clear(&extra_http_headers
, 0);
1287 curl_slist_free_all(pragma_header
);
1288 pragma_header
= NULL
;
1290 curl_slist_free_all(no_pragma_header
);
1291 no_pragma_header
= NULL
;
1293 if (curl_http_proxy
) {
1294 free((void *)curl_http_proxy
);
1295 curl_http_proxy
= NULL
;
1298 if (proxy_auth
.password
) {
1299 memset(proxy_auth
.password
, 0, strlen(proxy_auth
.password
));
1300 FREE_AND_NULL(proxy_auth
.password
);
1303 free((void *)curl_proxyuserpwd
);
1304 curl_proxyuserpwd
= NULL
;
1306 free((void *)http_proxy_authmethod
);
1307 http_proxy_authmethod
= NULL
;
1309 if (cert_auth
.password
!= NULL
) {
1310 memset(cert_auth
.password
, 0, strlen(cert_auth
.password
));
1311 FREE_AND_NULL(cert_auth
.password
);
1313 ssl_cert_password_required
= 0;
1315 if (proxy_cert_auth
.password
!= NULL
) {
1316 memset(proxy_cert_auth
.password
, 0, strlen(proxy_cert_auth
.password
));
1317 FREE_AND_NULL(proxy_cert_auth
.password
);
1319 proxy_ssl_cert_password_required
= 0;
1321 FREE_AND_NULL(cached_accept_language
);
1324 struct active_request_slot
*get_active_slot(void)
1326 struct active_request_slot
*slot
= active_queue_head
;
1327 struct active_request_slot
*newslot
;
1329 #ifdef USE_CURL_MULTI
1332 /* Wait for a slot to open up if the queue is full */
1333 while (active_requests
>= max_requests
) {
1334 curl_multi_perform(curlm
, &num_transfers
);
1335 if (num_transfers
< active_requests
)
1336 process_curl_messages();
1340 while (slot
!= NULL
&& slot
->in_use
)
1344 newslot
= xmalloc(sizeof(*newslot
));
1345 newslot
->curl
= NULL
;
1346 newslot
->in_use
= 0;
1347 newslot
->next
= NULL
;
1349 slot
= active_queue_head
;
1351 active_queue_head
= newslot
;
1353 while (slot
->next
!= NULL
)
1355 slot
->next
= newslot
;
1360 if (slot
->curl
== NULL
) {
1361 #ifdef NO_CURL_EASY_DUPHANDLE
1362 slot
->curl
= get_curl_handle();
1364 slot
->curl
= curl_easy_duphandle(curl_default
);
1366 curl_session_count
++;
1371 slot
->results
= NULL
;
1372 slot
->finished
= NULL
;
1373 slot
->callback_data
= NULL
;
1374 slot
->callback_func
= NULL
;
1375 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEFILE
, curl_cookie_file
);
1376 if (curl_save_cookies
)
1377 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEJAR
, curl_cookie_file
);
1378 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, pragma_header
);
1379 curl_easy_setopt(slot
->curl
, CURLOPT_ERRORBUFFER
, curl_errorstr
);
1380 curl_easy_setopt(slot
->curl
, CURLOPT_CUSTOMREQUEST
, NULL
);
1381 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, NULL
);
1382 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, NULL
);
1383 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, NULL
);
1384 curl_easy_setopt(slot
->curl
, CURLOPT_UPLOAD
, 0);
1385 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1386 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 1);
1387 curl_easy_setopt(slot
->curl
, CURLOPT_RANGE
, NULL
);
1390 * Default following to off unless "ALWAYS" is configured; this gives
1391 * callers a sane starting point, and they can tweak for individual
1392 * HTTP_FOLLOW_* cases themselves.
1394 if (http_follow_config
== HTTP_FOLLOW_ALWAYS
)
1395 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1397 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 0);
1399 #if LIBCURL_VERSION_NUM >= 0x070a08
1400 curl_easy_setopt(slot
->curl
, CURLOPT_IPRESOLVE
, git_curl_ipresolve
);
1402 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1403 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPAUTH
, http_auth_methods
);
1405 if (http_auth
.password
|| curl_empty_auth_enabled())
1406 init_curl_http_auth(slot
->curl
);
1411 int start_active_slot(struct active_request_slot
*slot
)
1413 #ifdef USE_CURL_MULTI
1414 CURLMcode curlm_result
= curl_multi_add_handle(curlm
, slot
->curl
);
1417 if (curlm_result
!= CURLM_OK
&&
1418 curlm_result
!= CURLM_CALL_MULTI_PERFORM
) {
1419 warning("curl_multi_add_handle failed: %s",
1420 curl_multi_strerror(curlm_result
));
1427 * We know there must be something to do, since we just added
1430 curl_multi_perform(curlm
, &num_transfers
);
1435 #ifdef USE_CURL_MULTI
1438 int (*fill
)(void *);
1439 struct fill_chain
*next
;
1442 static struct fill_chain
*fill_cfg
;
1444 void add_fill_function(void *data
, int (*fill
)(void *))
1446 struct fill_chain
*new_fill
= xmalloc(sizeof(*new_fill
));
1447 struct fill_chain
**linkp
= &fill_cfg
;
1448 new_fill
->data
= data
;
1449 new_fill
->fill
= fill
;
1450 new_fill
->next
= NULL
;
1452 linkp
= &(*linkp
)->next
;
1456 void fill_active_slots(void)
1458 struct active_request_slot
*slot
= active_queue_head
;
1460 while (active_requests
< max_requests
) {
1461 struct fill_chain
*fill
;
1462 for (fill
= fill_cfg
; fill
; fill
= fill
->next
)
1463 if (fill
->fill(fill
->data
))
1470 while (slot
!= NULL
) {
1471 if (!slot
->in_use
&& slot
->curl
!= NULL
1472 && curl_session_count
> min_curl_sessions
) {
1473 curl_easy_cleanup(slot
->curl
);
1475 curl_session_count
--;
1481 void step_active_slots(void)
1484 CURLMcode curlm_result
;
1487 curlm_result
= curl_multi_perform(curlm
, &num_transfers
);
1488 } while (curlm_result
== CURLM_CALL_MULTI_PERFORM
);
1489 if (num_transfers
< active_requests
) {
1490 process_curl_messages();
1491 fill_active_slots();
1496 void run_active_slot(struct active_request_slot
*slot
)
1498 #ifdef USE_CURL_MULTI
1503 struct timeval select_timeout
;
1506 slot
->finished
= &finished
;
1508 step_active_slots();
1511 #if LIBCURL_VERSION_NUM >= 0x070f04
1513 curl_multi_timeout(curlm
, &curl_timeout
);
1514 if (curl_timeout
== 0) {
1516 } else if (curl_timeout
== -1) {
1517 select_timeout
.tv_sec
= 0;
1518 select_timeout
.tv_usec
= 50000;
1520 select_timeout
.tv_sec
= curl_timeout
/ 1000;
1521 select_timeout
.tv_usec
= (curl_timeout
% 1000) * 1000;
1524 select_timeout
.tv_sec
= 0;
1525 select_timeout
.tv_usec
= 50000;
1532 curl_multi_fdset(curlm
, &readfds
, &writefds
, &excfds
, &max_fd
);
1535 * It can happen that curl_multi_timeout returns a pathologically
1536 * long timeout when curl_multi_fdset returns no file descriptors
1537 * to read. See commit message for more details.
1540 (select_timeout
.tv_sec
> 0 ||
1541 select_timeout
.tv_usec
> 50000)) {
1542 select_timeout
.tv_sec
= 0;
1543 select_timeout
.tv_usec
= 50000;
1546 select(max_fd
+1, &readfds
, &writefds
, &excfds
, &select_timeout
);
1550 while (slot
->in_use
) {
1551 slot
->curl_result
= curl_easy_perform(slot
->curl
);
1552 finish_active_slot(slot
);
1557 * The value of slot->finished we set before the loop was used
1558 * to set our "finished" variable when our request completed.
1560 * 1. The slot may not have been reused for another requst
1561 * yet, in which case it still has &finished.
1563 * 2. The slot may already be in-use to serve another request,
1564 * which can further be divided into two cases:
1566 * (a) If call run_active_slot() hasn't been called for that
1567 * other request, slot->finished would have been cleared
1568 * by get_active_slot() and has NULL.
1570 * (b) If the request did call run_active_slot(), then the
1571 * call would have updated slot->finished at the beginning
1572 * of this function, and with the clearing of the member
1573 * below, we would find that slot->finished is now NULL.
1575 * In all cases, slot->finished has no useful information to
1576 * anybody at this point. Some compilers warn us for
1577 * attempting to smuggle a pointer that is about to become
1578 * invalid, i.e. &finished. We clear it here to assure them.
1580 slot
->finished
= NULL
;
1583 static void release_active_slot(struct active_request_slot
*slot
)
1585 closedown_active_slot(slot
);
1587 xmulti_remove_handle(slot
);
1588 if (curl_session_count
> min_curl_sessions
) {
1589 curl_easy_cleanup(slot
->curl
);
1591 curl_session_count
--;
1594 #ifdef USE_CURL_MULTI
1595 fill_active_slots();
1599 void finish_all_active_slots(void)
1601 struct active_request_slot
*slot
= active_queue_head
;
1603 while (slot
!= NULL
)
1605 run_active_slot(slot
);
1606 slot
= active_queue_head
;
1612 /* Helpers for modifying and creating URLs */
1613 static inline int needs_quote(int ch
)
1615 if (((ch
>= 'A') && (ch
<= 'Z'))
1616 || ((ch
>= 'a') && (ch
<= 'z'))
1617 || ((ch
>= '0') && (ch
<= '9'))
1625 static char *quote_ref_url(const char *base
, const char *ref
)
1627 struct strbuf buf
= STRBUF_INIT
;
1631 end_url_with_slash(&buf
, base
);
1633 for (cp
= ref
; (ch
= *cp
) != 0; cp
++)
1634 if (needs_quote(ch
))
1635 strbuf_addf(&buf
, "%%%02x", ch
);
1637 strbuf_addch(&buf
, *cp
);
1639 return strbuf_detach(&buf
, NULL
);
1642 void append_remote_object_url(struct strbuf
*buf
, const char *url
,
1644 int only_two_digit_prefix
)
1646 end_url_with_slash(buf
, url
);
1648 strbuf_addf(buf
, "objects/%.*s/", 2, hex
);
1649 if (!only_two_digit_prefix
)
1650 strbuf_addstr(buf
, hex
+ 2);
1653 char *get_remote_object_url(const char *url
, const char *hex
,
1654 int only_two_digit_prefix
)
1656 struct strbuf buf
= STRBUF_INIT
;
1657 append_remote_object_url(&buf
, url
, hex
, only_two_digit_prefix
);
1658 return strbuf_detach(&buf
, NULL
);
1661 void normalize_curl_result(CURLcode
*result
, long http_code
,
1662 char *errorstr
, size_t errorlen
)
1665 * If we see a failing http code with CURLE_OK, we have turned off
1666 * FAILONERROR (to keep the server's custom error response), and should
1667 * translate the code into failure here.
1669 * Likewise, if we see a redirect (30x code), that means we turned off
1670 * redirect-following, and we should treat the result as an error.
1672 if (*result
== CURLE_OK
&& http_code
>= 300) {
1673 *result
= CURLE_HTTP_RETURNED_ERROR
;
1675 * Normally curl will already have put the "reason phrase"
1676 * from the server into curl_errorstr; unfortunately without
1677 * FAILONERROR it is lost, so we can give only the numeric
1680 xsnprintf(errorstr
, errorlen
,
1681 "The requested URL returned error: %ld",
1686 static int handle_curl_result(struct slot_results
*results
)
1688 normalize_curl_result(&results
->curl_result
, results
->http_code
,
1689 curl_errorstr
, sizeof(curl_errorstr
));
1691 if (results
->curl_result
== CURLE_OK
) {
1692 credential_approve(&http_auth
);
1693 if (proxy_auth
.password
)
1694 credential_approve(&proxy_auth
);
1696 } else if (missing_target(results
))
1697 return HTTP_MISSING_TARGET
;
1698 else if (results
->http_code
== 401) {
1699 if (http_auth
.username
&& http_auth
.password
) {
1700 credential_reject(&http_auth
);
1703 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1704 http_auth_methods
&= ~CURLAUTH_GSSNEGOTIATE
;
1705 if (results
->auth_avail
) {
1706 http_auth_methods
&= results
->auth_avail
;
1707 http_auth_methods_restricted
= 1;
1713 if (results
->http_connectcode
== 407)
1714 credential_reject(&proxy_auth
);
1715 #if LIBCURL_VERSION_NUM >= 0x070c00
1716 if (!curl_errorstr
[0])
1717 strlcpy(curl_errorstr
,
1718 curl_easy_strerror(results
->curl_result
),
1719 sizeof(curl_errorstr
));
1725 int run_one_slot(struct active_request_slot
*slot
,
1726 struct slot_results
*results
)
1728 slot
->results
= results
;
1729 if (!start_active_slot(slot
)) {
1730 xsnprintf(curl_errorstr
, sizeof(curl_errorstr
),
1731 "failed to start HTTP request");
1732 return HTTP_START_FAILED
;
1735 run_active_slot(slot
);
1736 return handle_curl_result(results
);
1739 struct curl_slist
*http_copy_default_headers(void)
1741 struct curl_slist
*headers
= NULL
;
1742 const struct string_list_item
*item
;
1744 for_each_string_list_item(item
, &extra_http_headers
)
1745 headers
= curl_slist_append(headers
, item
->string
);
1750 static CURLcode
curlinfo_strbuf(CURL
*curl
, CURLINFO info
, struct strbuf
*buf
)
1756 ret
= curl_easy_getinfo(curl
, info
, &ptr
);
1758 strbuf_addstr(buf
, ptr
);
1763 * Check for and extract a content-type parameter. "raw"
1764 * should be positioned at the start of the potential
1765 * parameter, with any whitespace already removed.
1767 * "name" is the name of the parameter. The value is appended
1770 static int extract_param(const char *raw
, const char *name
,
1773 size_t len
= strlen(name
);
1775 if (strncasecmp(raw
, name
, len
))
1783 while (*raw
&& !isspace(*raw
) && *raw
!= ';')
1784 strbuf_addch(out
, *raw
++);
1789 * Extract a normalized version of the content type, with any
1790 * spaces suppressed, all letters lowercased, and no trailing ";"
1793 * Note that we will silently remove even invalid whitespace. For
1794 * example, "text / plain" is specifically forbidden by RFC 2616,
1795 * but "text/plain" is the only reasonable output, and this keeps
1798 * If the "charset" argument is not NULL, store the value of any
1799 * charset parameter there.
1802 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
1803 * "text / plain" -> "text/plain"
1805 static void extract_content_type(struct strbuf
*raw
, struct strbuf
*type
,
1806 struct strbuf
*charset
)
1811 strbuf_grow(type
, raw
->len
);
1812 for (p
= raw
->buf
; *p
; p
++) {
1819 strbuf_addch(type
, tolower(*p
));
1825 strbuf_reset(charset
);
1827 while (isspace(*p
) || *p
== ';')
1829 if (!extract_param(p
, "charset", charset
))
1831 while (*p
&& !isspace(*p
))
1835 if (!charset
->len
&& starts_with(type
->buf
, "text/"))
1836 strbuf_addstr(charset
, "ISO-8859-1");
1839 static void write_accept_language(struct strbuf
*buf
)
1842 * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than
1843 * that, q-value will be smaller than 0.001, the minimum q-value the
1844 * HTTP specification allows. See
1845 * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value.
1847 const int MAX_DECIMAL_PLACES
= 3;
1848 const int MAX_LANGUAGE_TAGS
= 1000;
1849 const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE
= 4000;
1850 char **language_tags
= NULL
;
1852 const char *s
= get_preferred_languages();
1854 struct strbuf tag
= STRBUF_INIT
;
1856 /* Don't add Accept-Language header if no language is preferred. */
1861 * Split the colon-separated string of preferred languages into
1862 * language_tags array.
1865 /* collect language tag */
1866 for (; *s
&& (isalnum(*s
) || *s
== '_'); s
++)
1867 strbuf_addch(&tag
, *s
== '_' ? '-' : *s
);
1869 /* skip .codeset, @modifier and any other unnecessary parts */
1870 while (*s
&& *s
!= ':')
1875 REALLOC_ARRAY(language_tags
, num_langs
);
1876 language_tags
[num_langs
- 1] = strbuf_detach(&tag
, NULL
);
1877 if (num_langs
>= MAX_LANGUAGE_TAGS
- 1) /* -1 for '*' */
1882 /* write Accept-Language header into buf */
1884 int last_buf_len
= 0;
1890 REALLOC_ARRAY(language_tags
, num_langs
+ 1);
1891 language_tags
[num_langs
++] = "*"; /* it's OK; this won't be freed */
1893 /* compute decimal_places */
1894 for (max_q
= 1, decimal_places
= 0;
1895 max_q
< num_langs
&& decimal_places
<= MAX_DECIMAL_PLACES
;
1896 decimal_places
++, max_q
*= 10)
1899 xsnprintf(q_format
, sizeof(q_format
), ";q=0.%%0%dd", decimal_places
);
1901 strbuf_addstr(buf
, "Accept-Language: ");
1903 for (i
= 0; i
< num_langs
; i
++) {
1905 strbuf_addstr(buf
, ", ");
1907 strbuf_addstr(buf
, language_tags
[i
]);
1910 strbuf_addf(buf
, q_format
, max_q
- i
);
1912 if (buf
->len
> MAX_ACCEPT_LANGUAGE_HEADER_SIZE
) {
1913 strbuf_remove(buf
, last_buf_len
, buf
->len
- last_buf_len
);
1917 last_buf_len
= buf
->len
;
1921 /* free language tags -- last one is a static '*' */
1922 for (i
= 0; i
< num_langs
- 1; i
++)
1923 free(language_tags
[i
]);
1924 free(language_tags
);
1928 * Get an Accept-Language header which indicates user's preferred languages.
1932 * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1"
1933 * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1"
1934 * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1"
1935 * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1"
1936 * LANGUAGE= LANG=C -> ""
1938 static const char *get_accept_language(void)
1940 if (!cached_accept_language
) {
1941 struct strbuf buf
= STRBUF_INIT
;
1942 write_accept_language(&buf
);
1944 cached_accept_language
= strbuf_detach(&buf
, NULL
);
1947 return cached_accept_language
;
1950 static void http_opt_request_remainder(CURL
*curl
, off_t pos
)
1953 xsnprintf(buf
, sizeof(buf
), "%"PRIuMAX
"-", (uintmax_t)pos
);
1954 curl_easy_setopt(curl
, CURLOPT_RANGE
, buf
);
1957 /* http_request() targets */
1958 #define HTTP_REQUEST_STRBUF 0
1959 #define HTTP_REQUEST_FILE 1
1961 static int http_request(const char *url
,
1962 void *result
, int target
,
1963 const struct http_get_options
*options
)
1965 struct active_request_slot
*slot
;
1966 struct slot_results results
;
1967 struct curl_slist
*headers
= http_copy_default_headers();
1968 struct strbuf buf
= STRBUF_INIT
;
1969 const char *accept_language
;
1972 slot
= get_active_slot();
1973 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1975 if (result
== NULL
) {
1976 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 1);
1978 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
1979 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, result
);
1981 if (target
== HTTP_REQUEST_FILE
) {
1982 off_t posn
= ftello(result
);
1983 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1986 http_opt_request_remainder(slot
->curl
, posn
);
1988 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1992 accept_language
= get_accept_language();
1994 if (accept_language
)
1995 headers
= curl_slist_append(headers
, accept_language
);
1997 strbuf_addstr(&buf
, "Pragma:");
1998 if (options
&& options
->no_cache
)
1999 strbuf_addstr(&buf
, " no-cache");
2000 if (options
&& options
->initial_request
&&
2001 http_follow_config
== HTTP_FOLLOW_INITIAL
)
2002 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
2004 headers
= curl_slist_append(headers
, buf
.buf
);
2006 /* Add additional headers here */
2007 if (options
&& options
->extra_headers
) {
2008 const struct string_list_item
*item
;
2009 for_each_string_list_item(item
, options
->extra_headers
) {
2010 headers
= curl_slist_append(headers
, item
->string
);
2014 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, url
);
2015 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
2016 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "");
2017 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 0);
2019 ret
= run_one_slot(slot
, &results
);
2021 if (options
&& options
->content_type
) {
2022 struct strbuf raw
= STRBUF_INIT
;
2023 curlinfo_strbuf(slot
->curl
, CURLINFO_CONTENT_TYPE
, &raw
);
2024 extract_content_type(&raw
, options
->content_type
,
2026 strbuf_release(&raw
);
2029 if (options
&& options
->effective_url
)
2030 curlinfo_strbuf(slot
->curl
, CURLINFO_EFFECTIVE_URL
,
2031 options
->effective_url
);
2033 curl_slist_free_all(headers
);
2034 strbuf_release(&buf
);
2040 * Update the "base" url to a more appropriate value, as deduced by
2041 * redirects seen when requesting a URL starting with "url".
2043 * The "asked" parameter is a URL that we asked curl to access, and must begin
2046 * The "got" parameter is the URL that curl reported to us as where we ended
2049 * Returns 1 if we updated the base url, 0 otherwise.
2051 * Our basic strategy is to compare "base" and "asked" to find the bits
2052 * specific to our request. We then strip those bits off of "got" to yield the
2053 * new base. So for example, if our base is "http://example.com/foo.git",
2054 * and we ask for "http://example.com/foo.git/info/refs", we might end up
2055 * with "https://other.example.com/foo.git/info/refs". We would want the
2056 * new URL to become "https://other.example.com/foo.git".
2058 * Note that this assumes a sane redirect scheme. It's entirely possible
2059 * in the example above to end up at a URL that does not even end in
2060 * "info/refs". In such a case we die. There's not much we can do, such a
2061 * scheme is unlikely to represent a real git repository, and failing to
2062 * rewrite the base opens options for malicious redirects to do funny things.
2064 static int update_url_from_redirect(struct strbuf
*base
,
2066 const struct strbuf
*got
)
2071 if (!strcmp(asked
, got
->buf
))
2074 if (!skip_prefix(asked
, base
->buf
, &tail
))
2075 BUG("update_url_from_redirect: %s is not a superset of %s",
2079 if (!strip_suffix_mem(got
->buf
, &new_len
, tail
))
2080 die(_("unable to update url base from redirection:\n"
2086 strbuf_add(base
, got
->buf
, new_len
);
2091 static int http_request_reauth(const char *url
,
2092 void *result
, int target
,
2093 struct http_get_options
*options
)
2095 int ret
= http_request(url
, result
, target
, options
);
2097 if (ret
!= HTTP_OK
&& ret
!= HTTP_REAUTH
)
2100 if (options
&& options
->effective_url
&& options
->base_url
) {
2101 if (update_url_from_redirect(options
->base_url
,
2102 url
, options
->effective_url
)) {
2103 credential_from_url(&http_auth
, options
->base_url
->buf
);
2104 url
= options
->effective_url
->buf
;
2108 if (ret
!= HTTP_REAUTH
)
2112 * The previous request may have put cruft into our output stream; we
2113 * should clear it out before making our next request.
2116 case HTTP_REQUEST_STRBUF
:
2117 strbuf_reset(result
);
2119 case HTTP_REQUEST_FILE
:
2120 if (fflush(result
)) {
2121 error_errno("unable to flush a file");
2122 return HTTP_START_FAILED
;
2125 if (ftruncate(fileno(result
), 0) < 0) {
2126 error_errno("unable to truncate a file");
2127 return HTTP_START_FAILED
;
2131 BUG("Unknown http_request target");
2134 credential_fill(&http_auth
);
2136 return http_request(url
, result
, target
, options
);
2139 int http_get_strbuf(const char *url
,
2140 struct strbuf
*result
,
2141 struct http_get_options
*options
)
2143 return http_request_reauth(url
, result
, HTTP_REQUEST_STRBUF
, options
);
2147 * Downloads a URL and stores the result in the given file.
2149 * If a previous interrupted download is detected (i.e. a previous temporary
2150 * file is still around) the download is resumed.
2152 static int http_get_file(const char *url
, const char *filename
,
2153 struct http_get_options
*options
)
2156 struct strbuf tmpfile
= STRBUF_INIT
;
2159 strbuf_addf(&tmpfile
, "%s.temp", filename
);
2160 result
= fopen(tmpfile
.buf
, "a");
2162 error("Unable to open local file %s", tmpfile
.buf
);
2167 ret
= http_request_reauth(url
, result
, HTTP_REQUEST_FILE
, options
);
2170 if (ret
== HTTP_OK
&& finalize_object_file(tmpfile
.buf
, filename
))
2173 strbuf_release(&tmpfile
);
2177 int http_fetch_ref(const char *base
, struct ref
*ref
)
2179 struct http_get_options options
= {0};
2181 struct strbuf buffer
= STRBUF_INIT
;
2184 options
.no_cache
= 1;
2186 url
= quote_ref_url(base
, ref
->name
);
2187 if (http_get_strbuf(url
, &buffer
, &options
) == HTTP_OK
) {
2188 strbuf_rtrim(&buffer
);
2189 if (buffer
.len
== the_hash_algo
->hexsz
)
2190 ret
= get_oid_hex(buffer
.buf
, &ref
->old_oid
);
2191 else if (starts_with(buffer
.buf
, "ref: ")) {
2192 ref
->symref
= xstrdup(buffer
.buf
+ 5);
2197 strbuf_release(&buffer
);
2202 /* Helpers for fetching packs */
2203 static char *fetch_pack_index(unsigned char *hash
, const char *base_url
)
2206 struct strbuf buf
= STRBUF_INIT
;
2208 if (http_is_verbose
)
2209 fprintf(stderr
, "Getting index for pack %s\n", hash_to_hex(hash
));
2211 end_url_with_slash(&buf
, base_url
);
2212 strbuf_addf(&buf
, "objects/pack/pack-%s.idx", hash_to_hex(hash
));
2213 url
= strbuf_detach(&buf
, NULL
);
2215 strbuf_addf(&buf
, "%s.temp", sha1_pack_index_name(hash
));
2216 tmp
= strbuf_detach(&buf
, NULL
);
2218 if (http_get_file(url
, tmp
, NULL
) != HTTP_OK
) {
2219 error("Unable to get pack index %s", url
);
2227 static int fetch_and_setup_pack_index(struct packed_git
**packs_head
,
2228 unsigned char *sha1
, const char *base_url
)
2230 struct packed_git
*new_pack
;
2231 char *tmp_idx
= NULL
;
2234 if (has_pack_index(sha1
)) {
2235 new_pack
= parse_pack_index(sha1
, sha1_pack_index_name(sha1
));
2237 return -1; /* parse_pack_index() already issued error message */
2241 tmp_idx
= fetch_pack_index(sha1
, base_url
);
2245 new_pack
= parse_pack_index(sha1
, tmp_idx
);
2250 return -1; /* parse_pack_index() already issued error message */
2253 ret
= verify_pack_index(new_pack
);
2255 close_pack_index(new_pack
);
2256 ret
= finalize_object_file(tmp_idx
, sha1_pack_index_name(sha1
));
2263 new_pack
->next
= *packs_head
;
2264 *packs_head
= new_pack
;
2268 int http_get_info_packs(const char *base_url
, struct packed_git
**packs_head
)
2270 struct http_get_options options
= {0};
2274 struct strbuf buf
= STRBUF_INIT
;
2275 struct object_id oid
;
2277 end_url_with_slash(&buf
, base_url
);
2278 strbuf_addstr(&buf
, "objects/info/packs");
2279 url
= strbuf_detach(&buf
, NULL
);
2281 options
.no_cache
= 1;
2282 ret
= http_get_strbuf(url
, &buf
, &options
);
2288 if (skip_prefix(data
, "P pack-", &data
) &&
2289 !parse_oid_hex(data
, &oid
, &data
) &&
2290 skip_prefix(data
, ".pack", &data
) &&
2291 (*data
== '\n' || *data
== '\0')) {
2292 fetch_and_setup_pack_index(packs_head
, oid
.hash
, base_url
);
2294 data
= strchrnul(data
, '\n');
2297 data
++; /* skip past newline */
2305 void release_http_pack_request(struct http_pack_request
*preq
)
2307 if (preq
->packfile
!= NULL
) {
2308 fclose(preq
->packfile
);
2309 preq
->packfile
= NULL
;
2312 strbuf_release(&preq
->tmpfile
);
2317 int finish_http_pack_request(struct http_pack_request
*preq
)
2319 struct child_process ip
= CHILD_PROCESS_INIT
;
2323 fclose(preq
->packfile
);
2324 preq
->packfile
= NULL
;
2326 tmpfile_fd
= xopen(preq
->tmpfile
.buf
, O_RDONLY
);
2328 strvec_push(&ip
.args
, "index-pack");
2329 strvec_push(&ip
.args
, "--stdin");
2332 if (preq
->generate_keep
) {
2333 strvec_pushf(&ip
.args
, "--keep=git %"PRIuMAX
,
2334 (uintmax_t)getpid());
2340 if (run_command(&ip
)) {
2347 unlink(preq
->tmpfile
.buf
);
2351 void http_install_packfile(struct packed_git
*p
,
2352 struct packed_git
**list_to_remove_from
)
2354 struct packed_git
**lst
= list_to_remove_from
;
2357 lst
= &((*lst
)->next
);
2358 *lst
= (*lst
)->next
;
2360 install_packed_git(the_repository
, p
);
2363 struct http_pack_request
*new_http_pack_request(
2364 const unsigned char *packed_git_hash
, const char *base_url
) {
2366 struct strbuf buf
= STRBUF_INIT
;
2368 end_url_with_slash(&buf
, base_url
);
2369 strbuf_addf(&buf
, "objects/pack/pack-%s.pack",
2370 hash_to_hex(packed_git_hash
));
2371 return new_direct_http_pack_request(packed_git_hash
,
2372 strbuf_detach(&buf
, NULL
));
2375 struct http_pack_request
*new_direct_http_pack_request(
2376 const unsigned char *packed_git_hash
, char *url
)
2378 off_t prev_posn
= 0;
2379 struct http_pack_request
*preq
;
2381 preq
= xcalloc(1, sizeof(*preq
));
2382 strbuf_init(&preq
->tmpfile
, 0);
2386 strbuf_addf(&preq
->tmpfile
, "%s.temp", sha1_pack_name(packed_git_hash
));
2387 preq
->packfile
= fopen(preq
->tmpfile
.buf
, "a");
2388 if (!preq
->packfile
) {
2389 error("Unable to open local file %s for pack",
2394 preq
->slot
= get_active_slot();
2395 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_FILE
, preq
->packfile
);
2396 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite
);
2397 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_URL
, preq
->url
);
2398 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
2402 * If there is data present from a previous transfer attempt,
2403 * resume where it left off
2405 prev_posn
= ftello(preq
->packfile
);
2407 if (http_is_verbose
)
2409 "Resuming fetch of pack %s at byte %"PRIuMAX
"\n",
2410 hash_to_hex(packed_git_hash
),
2411 (uintmax_t)prev_posn
);
2412 http_opt_request_remainder(preq
->slot
->curl
, prev_posn
);
2418 strbuf_release(&preq
->tmpfile
);
2424 /* Helpers for fetching objects (loose) */
2425 static size_t fwrite_sha1_file(char *ptr
, size_t eltsize
, size_t nmemb
,
2428 unsigned char expn
[4096];
2429 size_t size
= eltsize
* nmemb
;
2431 struct http_object_request
*freq
= data
;
2432 struct active_request_slot
*slot
= freq
->slot
;
2435 CURLcode c
= curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
,
2438 BUG("curl_easy_getinfo for HTTP code failed: %s",
2439 curl_easy_strerror(c
));
2440 if (slot
->http_code
>= 300)
2445 ssize_t retval
= xwrite(freq
->localfile
,
2446 (char *) ptr
+ posn
, size
- posn
);
2448 return posn
/ eltsize
;
2450 } while (posn
< size
);
2452 freq
->stream
.avail_in
= size
;
2453 freq
->stream
.next_in
= (void *)ptr
;
2455 freq
->stream
.next_out
= expn
;
2456 freq
->stream
.avail_out
= sizeof(expn
);
2457 freq
->zret
= git_inflate(&freq
->stream
, Z_SYNC_FLUSH
);
2458 the_hash_algo
->update_fn(&freq
->c
, expn
,
2459 sizeof(expn
) - freq
->stream
.avail_out
);
2460 } while (freq
->stream
.avail_in
&& freq
->zret
== Z_OK
);
2464 struct http_object_request
*new_http_object_request(const char *base_url
,
2465 const struct object_id
*oid
)
2467 char *hex
= oid_to_hex(oid
);
2468 struct strbuf filename
= STRBUF_INIT
;
2469 struct strbuf prevfile
= STRBUF_INIT
;
2471 char prev_buf
[PREV_BUF_SIZE
];
2472 ssize_t prev_read
= 0;
2473 off_t prev_posn
= 0;
2474 struct http_object_request
*freq
;
2476 freq
= xcalloc(1, sizeof(*freq
));
2477 strbuf_init(&freq
->tmpfile
, 0);
2478 oidcpy(&freq
->oid
, oid
);
2479 freq
->localfile
= -1;
2481 loose_object_path(the_repository
, &filename
, oid
);
2482 strbuf_addf(&freq
->tmpfile
, "%s.temp", filename
.buf
);
2484 strbuf_addf(&prevfile
, "%s.prev", filename
.buf
);
2485 unlink_or_warn(prevfile
.buf
);
2486 rename(freq
->tmpfile
.buf
, prevfile
.buf
);
2487 unlink_or_warn(freq
->tmpfile
.buf
);
2488 strbuf_release(&filename
);
2490 if (freq
->localfile
!= -1)
2491 error("fd leakage in start: %d", freq
->localfile
);
2492 freq
->localfile
= open(freq
->tmpfile
.buf
,
2493 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2495 * This could have failed due to the "lazy directory creation";
2496 * try to mkdir the last path component.
2498 if (freq
->localfile
< 0 && errno
== ENOENT
) {
2499 char *dir
= strrchr(freq
->tmpfile
.buf
, '/');
2502 mkdir(freq
->tmpfile
.buf
, 0777);
2505 freq
->localfile
= open(freq
->tmpfile
.buf
,
2506 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2509 if (freq
->localfile
< 0) {
2510 error_errno("Couldn't create temporary file %s",
2515 git_inflate_init(&freq
->stream
);
2517 the_hash_algo
->init_fn(&freq
->c
);
2519 freq
->url
= get_remote_object_url(base_url
, hex
, 0);
2522 * If a previous temp file is present, process what was already
2525 prevlocal
= open(prevfile
.buf
, O_RDONLY
);
2526 if (prevlocal
!= -1) {
2528 prev_read
= xread(prevlocal
, prev_buf
, PREV_BUF_SIZE
);
2530 if (fwrite_sha1_file(prev_buf
,
2533 freq
) == prev_read
) {
2534 prev_posn
+= prev_read
;
2539 } while (prev_read
> 0);
2542 unlink_or_warn(prevfile
.buf
);
2543 strbuf_release(&prevfile
);
2546 * Reset inflate/SHA1 if there was an error reading the previous temp
2547 * file; also rewind to the beginning of the local file.
2549 if (prev_read
== -1) {
2550 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
2551 git_inflate_init(&freq
->stream
);
2552 the_hash_algo
->init_fn(&freq
->c
);
2555 lseek(freq
->localfile
, 0, SEEK_SET
);
2556 if (ftruncate(freq
->localfile
, 0) < 0) {
2557 error_errno("Couldn't truncate temporary file %s",
2564 freq
->slot
= get_active_slot();
2566 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FILE
, freq
);
2567 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FAILONERROR
, 0);
2568 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_sha1_file
);
2569 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_ERRORBUFFER
, freq
->errorstr
);
2570 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_URL
, freq
->url
);
2571 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_HTTPHEADER
, no_pragma_header
);
2574 * If we have successfully processed data from a previous fetch
2575 * attempt, only fetch the data we don't already have.
2578 if (http_is_verbose
)
2580 "Resuming fetch of object %s at byte %"PRIuMAX
"\n",
2581 hex
, (uintmax_t)prev_posn
);
2582 http_opt_request_remainder(freq
->slot
->curl
, prev_posn
);
2588 strbuf_release(&prevfile
);
2594 void process_http_object_request(struct http_object_request
*freq
)
2596 if (freq
->slot
== NULL
)
2598 freq
->curl_result
= freq
->slot
->curl_result
;
2599 freq
->http_code
= freq
->slot
->http_code
;
2603 int finish_http_object_request(struct http_object_request
*freq
)
2606 struct strbuf filename
= STRBUF_INIT
;
2608 close(freq
->localfile
);
2609 freq
->localfile
= -1;
2611 process_http_object_request(freq
);
2613 if (freq
->http_code
== 416) {
2614 warning("requested range invalid; we may already have all the data.");
2615 } else if (freq
->curl_result
!= CURLE_OK
) {
2616 if (stat(freq
->tmpfile
.buf
, &st
) == 0)
2617 if (st
.st_size
== 0)
2618 unlink_or_warn(freq
->tmpfile
.buf
);
2622 git_inflate_end(&freq
->stream
);
2623 the_hash_algo
->final_fn(freq
->real_oid
.hash
, &freq
->c
);
2624 if (freq
->zret
!= Z_STREAM_END
) {
2625 unlink_or_warn(freq
->tmpfile
.buf
);
2628 if (!oideq(&freq
->oid
, &freq
->real_oid
)) {
2629 unlink_or_warn(freq
->tmpfile
.buf
);
2632 loose_object_path(the_repository
, &filename
, &freq
->oid
);
2633 freq
->rename
= finalize_object_file(freq
->tmpfile
.buf
, filename
.buf
);
2634 strbuf_release(&filename
);
2636 return freq
->rename
;
2639 void abort_http_object_request(struct http_object_request
*freq
)
2641 unlink_or_warn(freq
->tmpfile
.buf
);
2643 release_http_object_request(freq
);
2646 void release_http_object_request(struct http_object_request
*freq
)
2648 if (freq
->localfile
!= -1) {
2649 close(freq
->localfile
);
2650 freq
->localfile
= -1;
2652 FREE_AND_NULL(freq
->url
);
2653 if (freq
->slot
!= NULL
) {
2654 freq
->slot
->callback_func
= NULL
;
2655 freq
->slot
->callback_data
= NULL
;
2656 release_active_slot(freq
->slot
);
2659 strbuf_release(&freq
->tmpfile
);