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 struct string_list cookies_to_redact
= STRING_LIST_INIT_DUP
;
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
;
92 } proxy_authmethods
[] = {
93 { "basic", CURLAUTH_BASIC
},
94 { "digest", CURLAUTH_DIGEST
},
95 { "negotiate", CURLAUTH_GSSNEGOTIATE
},
96 { "ntlm", CURLAUTH_NTLM
},
97 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
98 { "anyauth", CURLAUTH_ANY
},
101 * CURLAUTH_DIGEST_IE has no corresponding command-line option in
102 * curl(1) and is not included in CURLAUTH_ANY, so we leave it out
106 #ifdef CURLGSSAPI_DELEGATION_FLAG
107 static const char *curl_deleg
;
110 long curl_deleg_param
;
111 } curl_deleg_levels
[] = {
112 { "none", CURLGSSAPI_DELEGATION_NONE
},
113 { "policy", CURLGSSAPI_DELEGATION_POLICY_FLAG
},
114 { "always", CURLGSSAPI_DELEGATION_FLAG
},
118 static struct credential proxy_auth
= CREDENTIAL_INIT
;
119 static const char *curl_proxyuserpwd
;
120 static const char *curl_cookie_file
;
121 static int curl_save_cookies
;
122 struct credential http_auth
= CREDENTIAL_INIT
;
123 static int http_proactive_auth
;
124 static const char *user_agent
;
125 static int curl_empty_auth
= -1;
127 enum http_follow_config http_follow_config
= HTTP_FOLLOW_INITIAL
;
129 #if LIBCURL_VERSION_NUM >= 0x071700
130 /* Use CURLOPT_KEYPASSWD as is */
131 #elif LIBCURL_VERSION_NUM >= 0x070903
132 #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
134 #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
137 static struct credential cert_auth
= CREDENTIAL_INIT
;
138 static int ssl_cert_password_required
;
139 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
140 static unsigned long http_auth_methods
= CURLAUTH_ANY
;
141 static int http_auth_methods_restricted
;
142 /* Modes for which empty_auth cannot actually help us. */
143 static unsigned long empty_auth_useless
=
145 #ifdef CURLAUTH_DIGEST_IE
151 static struct curl_slist
*pragma_header
;
152 static struct curl_slist
*no_pragma_header
;
153 static struct string_list extra_http_headers
= STRING_LIST_INIT_DUP
;
155 static struct active_request_slot
*active_queue_head
;
157 static char *cached_accept_language
;
159 static char *http_ssl_backend
;
161 static int http_schannel_check_revoke
= 1;
163 * With the backend being set to `schannel`, setting sslCAinfo would override
164 * the Certificate Store in cURL v7.60.0 and later, which is not what we want
167 static int http_schannel_use_ssl_cainfo
;
169 size_t fread_buffer(char *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
171 size_t size
= eltsize
* nmemb
;
172 struct buffer
*buffer
= buffer_
;
174 if (size
> buffer
->buf
.len
- buffer
->posn
)
175 size
= buffer
->buf
.len
- buffer
->posn
;
176 memcpy(ptr
, buffer
->buf
.buf
+ buffer
->posn
, size
);
177 buffer
->posn
+= size
;
179 return size
/ eltsize
;
182 #ifndef NO_CURL_IOCTL
183 curlioerr
ioctl_buffer(CURL
*handle
, int cmd
, void *clientp
)
185 struct buffer
*buffer
= clientp
;
191 case CURLIOCMD_RESTARTREAD
:
196 return CURLIOE_UNKNOWNCMD
;
201 size_t fwrite_buffer(char *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
203 size_t size
= eltsize
* nmemb
;
204 struct strbuf
*buffer
= buffer_
;
206 strbuf_add(buffer
, ptr
, size
);
210 size_t fwrite_null(char *ptr
, size_t eltsize
, size_t nmemb
, void *strbuf
)
215 static void closedown_active_slot(struct active_request_slot
*slot
)
221 static void finish_active_slot(struct active_request_slot
*slot
)
223 closedown_active_slot(slot
);
224 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
, &slot
->http_code
);
226 if (slot
->finished
!= NULL
)
227 (*slot
->finished
) = 1;
229 /* Store slot results so they can be read after the slot is reused */
230 if (slot
->results
!= NULL
) {
231 slot
->results
->curl_result
= slot
->curl_result
;
232 slot
->results
->http_code
= slot
->http_code
;
233 #if LIBCURL_VERSION_NUM >= 0x070a08
234 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTPAUTH_AVAIL
,
235 &slot
->results
->auth_avail
);
237 slot
->results
->auth_avail
= 0;
240 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CONNECTCODE
,
241 &slot
->results
->http_connectcode
);
244 /* Run callback if appropriate */
245 if (slot
->callback_func
!= NULL
)
246 slot
->callback_func(slot
->callback_data
);
249 static void xmulti_remove_handle(struct active_request_slot
*slot
)
251 #ifdef USE_CURL_MULTI
252 curl_multi_remove_handle(curlm
, slot
->curl
);
256 #ifdef USE_CURL_MULTI
257 static void process_curl_messages(void)
260 struct active_request_slot
*slot
;
261 CURLMsg
*curl_message
= curl_multi_info_read(curlm
, &num_messages
);
263 while (curl_message
!= NULL
) {
264 if (curl_message
->msg
== CURLMSG_DONE
) {
265 int curl_result
= curl_message
->data
.result
;
266 slot
= active_queue_head
;
267 while (slot
!= NULL
&&
268 slot
->curl
!= curl_message
->easy_handle
)
271 xmulti_remove_handle(slot
);
272 slot
->curl_result
= curl_result
;
273 finish_active_slot(slot
);
275 fprintf(stderr
, "Received DONE message for unknown request!\n");
278 fprintf(stderr
, "Unknown CURL message received: %d\n",
279 (int)curl_message
->msg
);
281 curl_message
= curl_multi_info_read(curlm
, &num_messages
);
286 static int http_options(const char *var
, const char *value
, void *cb
)
288 if (!strcmp("http.version", var
)) {
289 return git_config_string(&curl_http_version
, var
, value
);
291 if (!strcmp("http.sslverify", var
)) {
292 curl_ssl_verify
= git_config_bool(var
, value
);
295 if (!strcmp("http.sslcipherlist", var
))
296 return git_config_string(&ssl_cipherlist
, var
, value
);
297 if (!strcmp("http.sslversion", var
))
298 return git_config_string(&ssl_version
, var
, value
);
299 if (!strcmp("http.sslcert", var
))
300 return git_config_pathname(&ssl_cert
, var
, value
);
301 #if LIBCURL_VERSION_NUM >= 0x070903
302 if (!strcmp("http.sslkey", var
))
303 return git_config_pathname(&ssl_key
, var
, value
);
305 #if LIBCURL_VERSION_NUM >= 0x070908
306 if (!strcmp("http.sslcapath", var
))
307 return git_config_pathname(&ssl_capath
, var
, value
);
309 if (!strcmp("http.sslcainfo", var
))
310 return git_config_pathname(&ssl_cainfo
, var
, value
);
311 if (!strcmp("http.sslcertpasswordprotected", var
)) {
312 ssl_cert_password_required
= git_config_bool(var
, value
);
315 if (!strcmp("http.ssltry", var
)) {
316 curl_ssl_try
= git_config_bool(var
, value
);
319 if (!strcmp("http.sslbackend", var
)) {
320 free(http_ssl_backend
);
321 http_ssl_backend
= xstrdup_or_null(value
);
325 if (!strcmp("http.schannelcheckrevoke", var
)) {
326 http_schannel_check_revoke
= git_config_bool(var
, value
);
330 if (!strcmp("http.schannelusesslcainfo", var
)) {
331 http_schannel_use_ssl_cainfo
= git_config_bool(var
, value
);
335 if (!strcmp("http.minsessions", var
)) {
336 min_curl_sessions
= git_config_int(var
, value
);
337 #ifndef USE_CURL_MULTI
338 if (min_curl_sessions
> 1)
339 min_curl_sessions
= 1;
343 #ifdef USE_CURL_MULTI
344 if (!strcmp("http.maxrequests", var
)) {
345 max_requests
= git_config_int(var
, value
);
349 if (!strcmp("http.lowspeedlimit", var
)) {
350 curl_low_speed_limit
= (long)git_config_int(var
, value
);
353 if (!strcmp("http.lowspeedtime", var
)) {
354 curl_low_speed_time
= (long)git_config_int(var
, value
);
358 if (!strcmp("http.noepsv", var
)) {
359 curl_ftp_no_epsv
= git_config_bool(var
, value
);
362 if (!strcmp("http.proxy", var
))
363 return git_config_string(&curl_http_proxy
, var
, value
);
365 if (!strcmp("http.proxyauthmethod", var
))
366 return git_config_string(&http_proxy_authmethod
, var
, value
);
368 if (!strcmp("http.cookiefile", var
))
369 return git_config_pathname(&curl_cookie_file
, var
, value
);
370 if (!strcmp("http.savecookies", var
)) {
371 curl_save_cookies
= git_config_bool(var
, value
);
375 if (!strcmp("http.postbuffer", var
)) {
376 http_post_buffer
= git_config_ssize_t(var
, value
);
377 if (http_post_buffer
< 0)
378 warning(_("negative value for http.postbuffer; defaulting to %d"), LARGE_PACKET_MAX
);
379 if (http_post_buffer
< LARGE_PACKET_MAX
)
380 http_post_buffer
= LARGE_PACKET_MAX
;
384 if (!strcmp("http.useragent", var
))
385 return git_config_string(&user_agent
, var
, value
);
387 if (!strcmp("http.emptyauth", var
)) {
388 if (value
&& !strcmp("auto", value
))
389 curl_empty_auth
= -1;
391 curl_empty_auth
= git_config_bool(var
, value
);
395 if (!strcmp("http.delegation", var
)) {
396 #ifdef CURLGSSAPI_DELEGATION_FLAG
397 return git_config_string(&curl_deleg
, var
, value
);
399 warning(_("Delegation control is not supported with cURL < 7.22.0"));
404 if (!strcmp("http.pinnedpubkey", var
)) {
405 #if LIBCURL_VERSION_NUM >= 0x072c00
406 return git_config_pathname(&ssl_pinnedkey
, var
, value
);
408 warning(_("Public key pinning not supported with cURL < 7.44.0"));
413 if (!strcmp("http.extraheader", var
)) {
415 return config_error_nonbool(var
);
416 } else if (!*value
) {
417 string_list_clear(&extra_http_headers
, 0);
419 string_list_append(&extra_http_headers
, value
);
424 if (!strcmp("http.followredirects", var
)) {
425 if (value
&& !strcmp(value
, "initial"))
426 http_follow_config
= HTTP_FOLLOW_INITIAL
;
427 else if (git_config_bool(var
, value
))
428 http_follow_config
= HTTP_FOLLOW_ALWAYS
;
430 http_follow_config
= HTTP_FOLLOW_NONE
;
434 /* Fall back on the default ones */
435 return git_default_config(var
, value
, cb
);
438 static int curl_empty_auth_enabled(void)
440 if (curl_empty_auth
>= 0)
441 return curl_empty_auth
;
443 #ifndef LIBCURL_CAN_HANDLE_AUTH_ANY
445 * Our libcurl is too old to do AUTH_ANY in the first place;
446 * just default to turning the feature off.
450 * In the automatic case, kick in the empty-auth
451 * hack as long as we would potentially try some
452 * method more exotic than "Basic" or "Digest".
454 * But only do this when this is our second or
455 * subsequent request, as by then we know what
456 * methods are available.
458 if (http_auth_methods_restricted
&&
459 (http_auth_methods
& ~empty_auth_useless
))
465 static void init_curl_http_auth(CURL
*result
)
467 if (!http_auth
.username
|| !*http_auth
.username
) {
468 if (curl_empty_auth_enabled())
469 curl_easy_setopt(result
, CURLOPT_USERPWD
, ":");
473 credential_fill(&http_auth
);
475 #if LIBCURL_VERSION_NUM >= 0x071301
476 curl_easy_setopt(result
, CURLOPT_USERNAME
, http_auth
.username
);
477 curl_easy_setopt(result
, CURLOPT_PASSWORD
, http_auth
.password
);
480 static struct strbuf up
= STRBUF_INIT
;
482 * Note that we assume we only ever have a single set of
483 * credentials in a given program run, so we do not have
484 * to worry about updating this buffer, only setting its
488 strbuf_addf(&up
, "%s:%s",
489 http_auth
.username
, http_auth
.password
);
490 curl_easy_setopt(result
, CURLOPT_USERPWD
, up
.buf
);
495 /* *var must be free-able */
496 static void var_override(const char **var
, char *value
)
500 *var
= xstrdup(value
);
504 static void set_proxyauth_name_password(CURL
*result
)
506 #if LIBCURL_VERSION_NUM >= 0x071301
507 curl_easy_setopt(result
, CURLOPT_PROXYUSERNAME
,
508 proxy_auth
.username
);
509 curl_easy_setopt(result
, CURLOPT_PROXYPASSWORD
,
510 proxy_auth
.password
);
512 struct strbuf s
= STRBUF_INIT
;
514 strbuf_addstr_urlencode(&s
, proxy_auth
.username
, 1);
515 strbuf_addch(&s
, ':');
516 strbuf_addstr_urlencode(&s
, proxy_auth
.password
, 1);
517 curl_proxyuserpwd
= strbuf_detach(&s
, NULL
);
518 curl_easy_setopt(result
, CURLOPT_PROXYUSERPWD
, curl_proxyuserpwd
);
522 static void init_curl_proxy_auth(CURL
*result
)
524 if (proxy_auth
.username
) {
525 if (!proxy_auth
.password
)
526 credential_fill(&proxy_auth
);
527 set_proxyauth_name_password(result
);
530 var_override(&http_proxy_authmethod
, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
532 #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
533 if (http_proxy_authmethod
) {
535 for (i
= 0; i
< ARRAY_SIZE(proxy_authmethods
); i
++) {
536 if (!strcmp(http_proxy_authmethod
, proxy_authmethods
[i
].name
)) {
537 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
,
538 proxy_authmethods
[i
].curlauth_param
);
542 if (i
== ARRAY_SIZE(proxy_authmethods
)) {
543 warning("unsupported proxy authentication method %s: using anyauth",
544 http_proxy_authmethod
);
545 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
549 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
553 static int has_cert_password(void)
555 if (ssl_cert
== NULL
|| ssl_cert_password_required
!= 1)
557 if (!cert_auth
.password
) {
558 cert_auth
.protocol
= xstrdup("cert");
559 cert_auth
.username
= xstrdup("");
560 cert_auth
.path
= xstrdup(ssl_cert
);
561 credential_fill(&cert_auth
);
566 #if LIBCURL_VERSION_NUM >= 0x071900
567 static void set_curl_keepalive(CURL
*c
)
569 curl_easy_setopt(c
, CURLOPT_TCP_KEEPALIVE
, 1);
572 #elif LIBCURL_VERSION_NUM >= 0x071000
573 static int sockopt_callback(void *client
, curl_socket_t fd
, curlsocktype type
)
577 socklen_t len
= (socklen_t
)sizeof(ka
);
579 if (type
!= CURLSOCKTYPE_IPCXN
)
582 rc
= setsockopt(fd
, SOL_SOCKET
, SO_KEEPALIVE
, (void *)&ka
, len
);
584 warning_errno("unable to set SO_KEEPALIVE on socket");
586 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
589 static void set_curl_keepalive(CURL
*c
)
591 curl_easy_setopt(c
, CURLOPT_SOCKOPTFUNCTION
, sockopt_callback
);
595 static void set_curl_keepalive(CURL
*c
)
597 /* not supported on older curl versions */
601 static void redact_sensitive_header(struct strbuf
*header
)
603 const char *sensitive_header
;
605 if (skip_prefix(header
->buf
, "Authorization:", &sensitive_header
) ||
606 skip_prefix(header
->buf
, "Proxy-Authorization:", &sensitive_header
)) {
607 /* The first token is the type, which is OK to log */
608 while (isspace(*sensitive_header
))
610 while (*sensitive_header
&& !isspace(*sensitive_header
))
612 /* Everything else is opaque and possibly sensitive */
613 strbuf_setlen(header
, sensitive_header
- header
->buf
);
614 strbuf_addstr(header
, " <redacted>");
615 } else if (cookies_to_redact
.nr
&&
616 skip_prefix(header
->buf
, "Cookie:", &sensitive_header
)) {
617 struct strbuf redacted_header
= STRBUF_INIT
;
620 while (isspace(*sensitive_header
))
624 * The contents of header starting from sensitive_header will
625 * subsequently be overridden, so it is fine to mutate this
626 * string (hence the assignment to "char *").
628 cookie
= (char *) sensitive_header
;
632 char *semicolon
= strstr(cookie
, "; ");
635 equals
= strchrnul(cookie
, '=');
637 /* invalid cookie, just append and continue */
638 strbuf_addstr(&redacted_header
, cookie
);
641 *equals
= 0; /* temporarily set to NUL for lookup */
642 if (string_list_lookup(&cookies_to_redact
, cookie
)) {
643 strbuf_addstr(&redacted_header
, cookie
);
644 strbuf_addstr(&redacted_header
, "=<redacted>");
647 strbuf_addstr(&redacted_header
, cookie
);
651 * There are more cookies. (Or, for some
652 * reason, the input string ends in "; ".)
654 strbuf_addstr(&redacted_header
, "; ");
655 cookie
= semicolon
+ strlen("; ");
661 strbuf_setlen(header
, sensitive_header
- header
->buf
);
662 strbuf_addbuf(header
, &redacted_header
);
666 static void curl_dump_header(const char *text
, unsigned char *ptr
, size_t size
, int hide_sensitive_header
)
668 struct strbuf out
= STRBUF_INIT
;
669 struct strbuf
**headers
, **header
;
671 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
672 text
, (long)size
, (long)size
);
673 trace_strbuf(&trace_curl
, &out
);
675 strbuf_add(&out
, ptr
, size
);
676 headers
= strbuf_split_max(&out
, '\n', 0);
678 for (header
= headers
; *header
; header
++) {
679 if (hide_sensitive_header
)
680 redact_sensitive_header(*header
);
681 strbuf_insert((*header
), 0, text
, strlen(text
));
682 strbuf_insert((*header
), strlen(text
), ": ", 2);
683 strbuf_rtrim((*header
));
684 strbuf_addch((*header
), '\n');
685 trace_strbuf(&trace_curl
, (*header
));
687 strbuf_list_free(headers
);
688 strbuf_release(&out
);
691 static void curl_dump_data(const char *text
, unsigned char *ptr
, size_t size
)
694 struct strbuf out
= STRBUF_INIT
;
695 unsigned int width
= 60;
697 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
698 text
, (long)size
, (long)size
);
699 trace_strbuf(&trace_curl
, &out
);
701 for (i
= 0; i
< size
; i
+= width
) {
705 strbuf_addf(&out
, "%s: ", text
);
706 for (w
= 0; (w
< width
) && (i
+ w
< size
); w
++) {
707 unsigned char ch
= ptr
[i
+ w
];
710 (ch
>= 0x20) && (ch
< 0x80)
713 strbuf_addch(&out
, '\n');
714 trace_strbuf(&trace_curl
, &out
);
716 strbuf_release(&out
);
719 static int curl_trace(CURL
*handle
, curl_infotype type
, char *data
, size_t size
, void *userp
)
722 enum { NO_FILTER
= 0, DO_FILTER
= 1 };
726 trace_printf_key(&trace_curl
, "== Info: %s", data
);
728 case CURLINFO_HEADER_OUT
:
729 text
= "=> Send header";
730 curl_dump_header(text
, (unsigned char *)data
, size
, DO_FILTER
);
732 case CURLINFO_DATA_OUT
:
733 if (trace_curl_data
) {
734 text
= "=> Send data";
735 curl_dump_data(text
, (unsigned char *)data
, size
);
738 case CURLINFO_SSL_DATA_OUT
:
739 if (trace_curl_data
) {
740 text
= "=> Send SSL data";
741 curl_dump_data(text
, (unsigned char *)data
, size
);
744 case CURLINFO_HEADER_IN
:
745 text
= "<= Recv header";
746 curl_dump_header(text
, (unsigned char *)data
, size
, NO_FILTER
);
748 case CURLINFO_DATA_IN
:
749 if (trace_curl_data
) {
750 text
= "<= Recv data";
751 curl_dump_data(text
, (unsigned char *)data
, size
);
754 case CURLINFO_SSL_DATA_IN
:
755 if (trace_curl_data
) {
756 text
= "<= Recv SSL data";
757 curl_dump_data(text
, (unsigned char *)data
, size
);
761 default: /* we ignore unknown types by default */
767 void setup_curl_trace(CURL
*handle
)
769 if (!trace_want(&trace_curl
))
771 curl_easy_setopt(handle
, CURLOPT_VERBOSE
, 1L);
772 curl_easy_setopt(handle
, CURLOPT_DEBUGFUNCTION
, curl_trace
);
773 curl_easy_setopt(handle
, CURLOPT_DEBUGDATA
, NULL
);
776 #ifdef CURLPROTO_HTTP
777 static long get_curl_allowed_protocols(int from_user
)
779 long allowed_protocols
= 0;
781 if (is_transport_allowed("http", from_user
))
782 allowed_protocols
|= CURLPROTO_HTTP
;
783 if (is_transport_allowed("https", from_user
))
784 allowed_protocols
|= CURLPROTO_HTTPS
;
785 if (is_transport_allowed("ftp", from_user
))
786 allowed_protocols
|= CURLPROTO_FTP
;
787 if (is_transport_allowed("ftps", from_user
))
788 allowed_protocols
|= CURLPROTO_FTPS
;
790 return allowed_protocols
;
794 #if LIBCURL_VERSION_NUM >=0x072f00
795 static int get_curl_http_version_opt(const char *version_string
, long *opt
)
802 { "HTTP/1.1", CURL_HTTP_VERSION_1_1
},
803 { "HTTP/2", CURL_HTTP_VERSION_2
}
806 for (i
= 0; i
< ARRAY_SIZE(choice
); i
++) {
807 if (!strcmp(version_string
, choice
[i
].name
)) {
808 *opt
= choice
[i
].opt_token
;
813 warning("unknown value given to http.version: '%s'", version_string
);
814 return -1; /* not found */
819 static CURL
*get_curl_handle(void)
821 CURL
*result
= curl_easy_init();
824 die("curl_easy_init failed");
826 if (!curl_ssl_verify
) {
827 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 0);
828 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 0);
830 /* Verify authenticity of the peer's certificate */
831 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 1);
832 /* The name in the cert must match whom we tried to connect */
833 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 2);
836 #if LIBCURL_VERSION_NUM >= 0x072f00 // 7.47.0
837 if (curl_http_version
) {
839 if (!get_curl_http_version_opt(curl_http_version
, &opt
)) {
840 /* Set request use http version */
841 curl_easy_setopt(result
, CURLOPT_HTTP_VERSION
, opt
);
846 #if LIBCURL_VERSION_NUM >= 0x070907
847 curl_easy_setopt(result
, CURLOPT_NETRC
, CURL_NETRC_OPTIONAL
);
849 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
850 curl_easy_setopt(result
, CURLOPT_HTTPAUTH
, CURLAUTH_ANY
);
853 #ifdef CURLGSSAPI_DELEGATION_FLAG
856 for (i
= 0; i
< ARRAY_SIZE(curl_deleg_levels
); i
++) {
857 if (!strcmp(curl_deleg
, curl_deleg_levels
[i
].name
)) {
858 curl_easy_setopt(result
, CURLOPT_GSSAPI_DELEGATION
,
859 curl_deleg_levels
[i
].curl_deleg_param
);
863 if (i
== ARRAY_SIZE(curl_deleg_levels
))
864 warning("Unknown delegation method '%s': using default",
869 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
870 !http_schannel_check_revoke
) {
871 #if LIBCURL_VERSION_NUM >= 0x072c00
872 curl_easy_setopt(result
, CURLOPT_SSL_OPTIONS
, CURLSSLOPT_NO_REVOKE
);
874 warning(_("CURLSSLOPT_NO_REVOKE not supported with cURL < 7.44.0"));
878 if (http_proactive_auth
)
879 init_curl_http_auth(result
);
881 if (getenv("GIT_SSL_VERSION"))
882 ssl_version
= getenv("GIT_SSL_VERSION");
883 if (ssl_version
&& *ssl_version
) {
885 for (i
= 0; i
< ARRAY_SIZE(sslversions
); i
++) {
886 if (!strcmp(ssl_version
, sslversions
[i
].name
)) {
887 curl_easy_setopt(result
, CURLOPT_SSLVERSION
,
888 sslversions
[i
].ssl_version
);
892 if (i
== ARRAY_SIZE(sslversions
))
893 warning("unsupported ssl version %s: using default",
897 if (getenv("GIT_SSL_CIPHER_LIST"))
898 ssl_cipherlist
= getenv("GIT_SSL_CIPHER_LIST");
899 if (ssl_cipherlist
!= NULL
&& *ssl_cipherlist
)
900 curl_easy_setopt(result
, CURLOPT_SSL_CIPHER_LIST
,
903 if (ssl_cert
!= NULL
)
904 curl_easy_setopt(result
, CURLOPT_SSLCERT
, ssl_cert
);
905 if (has_cert_password())
906 curl_easy_setopt(result
, CURLOPT_KEYPASSWD
, cert_auth
.password
);
907 #if LIBCURL_VERSION_NUM >= 0x070903
909 curl_easy_setopt(result
, CURLOPT_SSLKEY
, ssl_key
);
911 #if LIBCURL_VERSION_NUM >= 0x070908
912 if (ssl_capath
!= NULL
)
913 curl_easy_setopt(result
, CURLOPT_CAPATH
, ssl_capath
);
915 #if LIBCURL_VERSION_NUM >= 0x072c00
916 if (ssl_pinnedkey
!= NULL
)
917 curl_easy_setopt(result
, CURLOPT_PINNEDPUBLICKEY
, ssl_pinnedkey
);
919 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
920 !http_schannel_use_ssl_cainfo
) {
921 curl_easy_setopt(result
, CURLOPT_CAINFO
, NULL
);
922 #if LIBCURL_VERSION_NUM >= 0x073400
923 curl_easy_setopt(result
, CURLOPT_PROXY_CAINFO
, NULL
);
925 } else if (ssl_cainfo
!= NULL
)
926 curl_easy_setopt(result
, CURLOPT_CAINFO
, ssl_cainfo
);
928 if (curl_low_speed_limit
> 0 && curl_low_speed_time
> 0) {
929 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_LIMIT
,
930 curl_low_speed_limit
);
931 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_TIME
,
932 curl_low_speed_time
);
935 curl_easy_setopt(result
, CURLOPT_MAXREDIRS
, 20);
936 #if LIBCURL_VERSION_NUM >= 0x071301
937 curl_easy_setopt(result
, CURLOPT_POSTREDIR
, CURL_REDIR_POST_ALL
);
938 #elif LIBCURL_VERSION_NUM >= 0x071101
939 curl_easy_setopt(result
, CURLOPT_POST301
, 1);
941 #ifdef CURLPROTO_HTTP
942 curl_easy_setopt(result
, CURLOPT_REDIR_PROTOCOLS
,
943 get_curl_allowed_protocols(0));
944 curl_easy_setopt(result
, CURLOPT_PROTOCOLS
,
945 get_curl_allowed_protocols(-1));
947 warning(_("Protocol restrictions not supported with cURL < 7.19.4"));
949 if (getenv("GIT_CURL_VERBOSE"))
950 curl_easy_setopt(result
, CURLOPT_VERBOSE
, 1L);
951 setup_curl_trace(result
);
952 if (getenv("GIT_TRACE_CURL_NO_DATA"))
954 if (getenv("GIT_REDACT_COOKIES")) {
955 string_list_split(&cookies_to_redact
,
956 getenv("GIT_REDACT_COOKIES"), ',', -1);
957 string_list_sort(&cookies_to_redact
);
960 curl_easy_setopt(result
, CURLOPT_USERAGENT
,
961 user_agent
? user_agent
: git_user_agent());
963 if (curl_ftp_no_epsv
)
964 curl_easy_setopt(result
, CURLOPT_FTP_USE_EPSV
, 0);
966 #ifdef CURLOPT_USE_SSL
968 curl_easy_setopt(result
, CURLOPT_USE_SSL
, CURLUSESSL_TRY
);
972 * CURL also examines these variables as a fallback; but we need to query
973 * them here in order to decide whether to prompt for missing password (cf.
974 * init_curl_proxy_auth()).
976 * Unlike many other common environment variables, these are historically
977 * lowercase only. It appears that CURL did not know this and implemented
978 * only uppercase variants, which was later corrected to take both - with
979 * the exception of http_proxy, which is lowercase only also in CURL. As
980 * the lowercase versions are the historical quasi-standard, they take
981 * precedence here, as in CURL.
983 if (!curl_http_proxy
) {
984 if (http_auth
.protocol
&& !strcmp(http_auth
.protocol
, "https")) {
985 var_override(&curl_http_proxy
, getenv("HTTPS_PROXY"));
986 var_override(&curl_http_proxy
, getenv("https_proxy"));
988 var_override(&curl_http_proxy
, getenv("http_proxy"));
990 if (!curl_http_proxy
) {
991 var_override(&curl_http_proxy
, getenv("ALL_PROXY"));
992 var_override(&curl_http_proxy
, getenv("all_proxy"));
996 if (curl_http_proxy
&& curl_http_proxy
[0] == '\0') {
998 * Handle case with the empty http.proxy value here to keep
1000 * NB: empty option disables proxying at all.
1002 curl_easy_setopt(result
, CURLOPT_PROXY
, "");
1003 } else if (curl_http_proxy
) {
1004 #if LIBCURL_VERSION_NUM >= 0x071800
1005 if (starts_with(curl_http_proxy
, "socks5h"))
1006 curl_easy_setopt(result
,
1007 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5_HOSTNAME
);
1008 else if (starts_with(curl_http_proxy
, "socks5"))
1009 curl_easy_setopt(result
,
1010 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5
);
1011 else if (starts_with(curl_http_proxy
, "socks4a"))
1012 curl_easy_setopt(result
,
1013 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4A
);
1014 else if (starts_with(curl_http_proxy
, "socks"))
1015 curl_easy_setopt(result
,
1016 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4
);
1018 #if LIBCURL_VERSION_NUM >= 0x073400
1019 else if (starts_with(curl_http_proxy
, "https"))
1020 curl_easy_setopt(result
,
1021 CURLOPT_PROXYTYPE
, CURLPROXY_HTTPS
);
1023 if (strstr(curl_http_proxy
, "://"))
1024 credential_from_url(&proxy_auth
, curl_http_proxy
);
1026 struct strbuf url
= STRBUF_INIT
;
1027 strbuf_addf(&url
, "http://%s", curl_http_proxy
);
1028 credential_from_url(&proxy_auth
, url
.buf
);
1029 strbuf_release(&url
);
1032 if (!proxy_auth
.host
)
1033 die("Invalid proxy URL '%s'", curl_http_proxy
);
1035 curl_easy_setopt(result
, CURLOPT_PROXY
, proxy_auth
.host
);
1036 #if LIBCURL_VERSION_NUM >= 0x071304
1037 var_override(&curl_no_proxy
, getenv("NO_PROXY"));
1038 var_override(&curl_no_proxy
, getenv("no_proxy"));
1039 curl_easy_setopt(result
, CURLOPT_NOPROXY
, curl_no_proxy
);
1042 init_curl_proxy_auth(result
);
1044 set_curl_keepalive(result
);
1049 static void set_from_env(const char **var
, const char *envname
)
1051 const char *val
= getenv(envname
);
1056 void http_init(struct remote
*remote
, const char *url
, int proactive_auth
)
1058 char *low_speed_limit
;
1059 char *low_speed_time
;
1060 char *normalized_url
;
1061 struct urlmatch_config config
= { STRING_LIST_INIT_DUP
};
1063 config
.section
= "http";
1065 config
.collect_fn
= http_options
;
1066 config
.cascade_fn
= git_default_config
;
1069 http_is_verbose
= 0;
1070 normalized_url
= url_normalize(url
, &config
.url
);
1072 git_config(urlmatch_config_entry
, &config
);
1073 free(normalized_url
);
1075 #if LIBCURL_VERSION_NUM >= 0x073800
1076 if (http_ssl_backend
) {
1077 const curl_ssl_backend
**backends
;
1078 struct strbuf buf
= STRBUF_INIT
;
1081 switch (curl_global_sslset(-1, http_ssl_backend
, &backends
)) {
1082 case CURLSSLSET_UNKNOWN_BACKEND
:
1083 strbuf_addf(&buf
, _("Unsupported SSL backend '%s'. "
1084 "Supported SSL backends:"),
1086 for (i
= 0; backends
[i
]; i
++)
1087 strbuf_addf(&buf
, "\n\t%s", backends
[i
]->name
);
1089 case CURLSSLSET_NO_BACKENDS
:
1090 die(_("Could not set SSL backend to '%s': "
1091 "cURL was built without SSL backends"),
1093 case CURLSSLSET_TOO_LATE
:
1094 die(_("Could not set SSL backend to '%s': already set"),
1102 if (curl_global_init(CURL_GLOBAL_ALL
) != CURLE_OK
)
1103 die("curl_global_init failed");
1105 http_proactive_auth
= proactive_auth
;
1107 if (remote
&& remote
->http_proxy
)
1108 curl_http_proxy
= xstrdup(remote
->http_proxy
);
1111 var_override(&http_proxy_authmethod
, remote
->http_proxy_authmethod
);
1113 pragma_header
= curl_slist_append(http_copy_default_headers(),
1114 "Pragma: no-cache");
1115 no_pragma_header
= curl_slist_append(http_copy_default_headers(),
1118 #ifdef USE_CURL_MULTI
1120 char *http_max_requests
= getenv("GIT_HTTP_MAX_REQUESTS");
1121 if (http_max_requests
!= NULL
)
1122 max_requests
= atoi(http_max_requests
);
1125 curlm
= curl_multi_init();
1127 die("curl_multi_init failed");
1130 if (getenv("GIT_SSL_NO_VERIFY"))
1131 curl_ssl_verify
= 0;
1133 set_from_env(&ssl_cert
, "GIT_SSL_CERT");
1134 #if LIBCURL_VERSION_NUM >= 0x070903
1135 set_from_env(&ssl_key
, "GIT_SSL_KEY");
1137 #if LIBCURL_VERSION_NUM >= 0x070908
1138 set_from_env(&ssl_capath
, "GIT_SSL_CAPATH");
1140 set_from_env(&ssl_cainfo
, "GIT_SSL_CAINFO");
1142 set_from_env(&user_agent
, "GIT_HTTP_USER_AGENT");
1144 low_speed_limit
= getenv("GIT_HTTP_LOW_SPEED_LIMIT");
1145 if (low_speed_limit
!= NULL
)
1146 curl_low_speed_limit
= strtol(low_speed_limit
, NULL
, 10);
1147 low_speed_time
= getenv("GIT_HTTP_LOW_SPEED_TIME");
1148 if (low_speed_time
!= NULL
)
1149 curl_low_speed_time
= strtol(low_speed_time
, NULL
, 10);
1151 if (curl_ssl_verify
== -1)
1152 curl_ssl_verify
= 1;
1154 curl_session_count
= 0;
1155 #ifdef USE_CURL_MULTI
1156 if (max_requests
< 1)
1157 max_requests
= DEFAULT_MAX_REQUESTS
;
1160 if (getenv("GIT_CURL_FTP_NO_EPSV"))
1161 curl_ftp_no_epsv
= 1;
1164 credential_from_url(&http_auth
, url
);
1165 if (!ssl_cert_password_required
&&
1166 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
1167 starts_with(url
, "https://"))
1168 ssl_cert_password_required
= 1;
1171 #ifndef NO_CURL_EASY_DUPHANDLE
1172 curl_default
= get_curl_handle();
1176 void http_cleanup(void)
1178 struct active_request_slot
*slot
= active_queue_head
;
1180 while (slot
!= NULL
) {
1181 struct active_request_slot
*next
= slot
->next
;
1182 if (slot
->curl
!= NULL
) {
1183 xmulti_remove_handle(slot
);
1184 curl_easy_cleanup(slot
->curl
);
1189 active_queue_head
= NULL
;
1191 #ifndef NO_CURL_EASY_DUPHANDLE
1192 curl_easy_cleanup(curl_default
);
1195 #ifdef USE_CURL_MULTI
1196 curl_multi_cleanup(curlm
);
1198 curl_global_cleanup();
1200 string_list_clear(&extra_http_headers
, 0);
1202 curl_slist_free_all(pragma_header
);
1203 pragma_header
= NULL
;
1205 curl_slist_free_all(no_pragma_header
);
1206 no_pragma_header
= NULL
;
1208 if (curl_http_proxy
) {
1209 free((void *)curl_http_proxy
);
1210 curl_http_proxy
= NULL
;
1213 if (proxy_auth
.password
) {
1214 memset(proxy_auth
.password
, 0, strlen(proxy_auth
.password
));
1215 FREE_AND_NULL(proxy_auth
.password
);
1218 free((void *)curl_proxyuserpwd
);
1219 curl_proxyuserpwd
= NULL
;
1221 free((void *)http_proxy_authmethod
);
1222 http_proxy_authmethod
= NULL
;
1224 if (cert_auth
.password
!= NULL
) {
1225 memset(cert_auth
.password
, 0, strlen(cert_auth
.password
));
1226 FREE_AND_NULL(cert_auth
.password
);
1228 ssl_cert_password_required
= 0;
1230 FREE_AND_NULL(cached_accept_language
);
1233 struct active_request_slot
*get_active_slot(void)
1235 struct active_request_slot
*slot
= active_queue_head
;
1236 struct active_request_slot
*newslot
;
1238 #ifdef USE_CURL_MULTI
1241 /* Wait for a slot to open up if the queue is full */
1242 while (active_requests
>= max_requests
) {
1243 curl_multi_perform(curlm
, &num_transfers
);
1244 if (num_transfers
< active_requests
)
1245 process_curl_messages();
1249 while (slot
!= NULL
&& slot
->in_use
)
1253 newslot
= xmalloc(sizeof(*newslot
));
1254 newslot
->curl
= NULL
;
1255 newslot
->in_use
= 0;
1256 newslot
->next
= NULL
;
1258 slot
= active_queue_head
;
1260 active_queue_head
= newslot
;
1262 while (slot
->next
!= NULL
)
1264 slot
->next
= newslot
;
1269 if (slot
->curl
== NULL
) {
1270 #ifdef NO_CURL_EASY_DUPHANDLE
1271 slot
->curl
= get_curl_handle();
1273 slot
->curl
= curl_easy_duphandle(curl_default
);
1275 curl_session_count
++;
1280 slot
->results
= NULL
;
1281 slot
->finished
= NULL
;
1282 slot
->callback_data
= NULL
;
1283 slot
->callback_func
= NULL
;
1284 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEFILE
, curl_cookie_file
);
1285 if (curl_save_cookies
)
1286 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEJAR
, curl_cookie_file
);
1287 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, pragma_header
);
1288 curl_easy_setopt(slot
->curl
, CURLOPT_ERRORBUFFER
, curl_errorstr
);
1289 curl_easy_setopt(slot
->curl
, CURLOPT_CUSTOMREQUEST
, NULL
);
1290 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, NULL
);
1291 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, NULL
);
1292 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, NULL
);
1293 curl_easy_setopt(slot
->curl
, CURLOPT_UPLOAD
, 0);
1294 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1295 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 1);
1296 curl_easy_setopt(slot
->curl
, CURLOPT_RANGE
, NULL
);
1299 * Default following to off unless "ALWAYS" is configured; this gives
1300 * callers a sane starting point, and they can tweak for individual
1301 * HTTP_FOLLOW_* cases themselves.
1303 if (http_follow_config
== HTTP_FOLLOW_ALWAYS
)
1304 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1306 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 0);
1308 #if LIBCURL_VERSION_NUM >= 0x070a08
1309 curl_easy_setopt(slot
->curl
, CURLOPT_IPRESOLVE
, git_curl_ipresolve
);
1311 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1312 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPAUTH
, http_auth_methods
);
1314 if (http_auth
.password
|| curl_empty_auth_enabled())
1315 init_curl_http_auth(slot
->curl
);
1320 int start_active_slot(struct active_request_slot
*slot
)
1322 #ifdef USE_CURL_MULTI
1323 CURLMcode curlm_result
= curl_multi_add_handle(curlm
, slot
->curl
);
1326 if (curlm_result
!= CURLM_OK
&&
1327 curlm_result
!= CURLM_CALL_MULTI_PERFORM
) {
1328 warning("curl_multi_add_handle failed: %s",
1329 curl_multi_strerror(curlm_result
));
1336 * We know there must be something to do, since we just added
1339 curl_multi_perform(curlm
, &num_transfers
);
1344 #ifdef USE_CURL_MULTI
1347 int (*fill
)(void *);
1348 struct fill_chain
*next
;
1351 static struct fill_chain
*fill_cfg
;
1353 void add_fill_function(void *data
, int (*fill
)(void *))
1355 struct fill_chain
*new_fill
= xmalloc(sizeof(*new_fill
));
1356 struct fill_chain
**linkp
= &fill_cfg
;
1357 new_fill
->data
= data
;
1358 new_fill
->fill
= fill
;
1359 new_fill
->next
= NULL
;
1361 linkp
= &(*linkp
)->next
;
1365 void fill_active_slots(void)
1367 struct active_request_slot
*slot
= active_queue_head
;
1369 while (active_requests
< max_requests
) {
1370 struct fill_chain
*fill
;
1371 for (fill
= fill_cfg
; fill
; fill
= fill
->next
)
1372 if (fill
->fill(fill
->data
))
1379 while (slot
!= NULL
) {
1380 if (!slot
->in_use
&& slot
->curl
!= NULL
1381 && curl_session_count
> min_curl_sessions
) {
1382 curl_easy_cleanup(slot
->curl
);
1384 curl_session_count
--;
1390 void step_active_slots(void)
1393 CURLMcode curlm_result
;
1396 curlm_result
= curl_multi_perform(curlm
, &num_transfers
);
1397 } while (curlm_result
== CURLM_CALL_MULTI_PERFORM
);
1398 if (num_transfers
< active_requests
) {
1399 process_curl_messages();
1400 fill_active_slots();
1405 void run_active_slot(struct active_request_slot
*slot
)
1407 #ifdef USE_CURL_MULTI
1412 struct timeval select_timeout
;
1415 slot
->finished
= &finished
;
1417 step_active_slots();
1420 #if LIBCURL_VERSION_NUM >= 0x070f04
1422 curl_multi_timeout(curlm
, &curl_timeout
);
1423 if (curl_timeout
== 0) {
1425 } else if (curl_timeout
== -1) {
1426 select_timeout
.tv_sec
= 0;
1427 select_timeout
.tv_usec
= 50000;
1429 select_timeout
.tv_sec
= curl_timeout
/ 1000;
1430 select_timeout
.tv_usec
= (curl_timeout
% 1000) * 1000;
1433 select_timeout
.tv_sec
= 0;
1434 select_timeout
.tv_usec
= 50000;
1441 curl_multi_fdset(curlm
, &readfds
, &writefds
, &excfds
, &max_fd
);
1444 * It can happen that curl_multi_timeout returns a pathologically
1445 * long timeout when curl_multi_fdset returns no file descriptors
1446 * to read. See commit message for more details.
1449 (select_timeout
.tv_sec
> 0 ||
1450 select_timeout
.tv_usec
> 50000)) {
1451 select_timeout
.tv_sec
= 0;
1452 select_timeout
.tv_usec
= 50000;
1455 select(max_fd
+1, &readfds
, &writefds
, &excfds
, &select_timeout
);
1459 while (slot
->in_use
) {
1460 slot
->curl_result
= curl_easy_perform(slot
->curl
);
1461 finish_active_slot(slot
);
1466 static void release_active_slot(struct active_request_slot
*slot
)
1468 closedown_active_slot(slot
);
1470 xmulti_remove_handle(slot
);
1471 if (curl_session_count
> min_curl_sessions
) {
1472 curl_easy_cleanup(slot
->curl
);
1474 curl_session_count
--;
1477 #ifdef USE_CURL_MULTI
1478 fill_active_slots();
1482 void finish_all_active_slots(void)
1484 struct active_request_slot
*slot
= active_queue_head
;
1486 while (slot
!= NULL
)
1488 run_active_slot(slot
);
1489 slot
= active_queue_head
;
1495 /* Helpers for modifying and creating URLs */
1496 static inline int needs_quote(int ch
)
1498 if (((ch
>= 'A') && (ch
<= 'Z'))
1499 || ((ch
>= 'a') && (ch
<= 'z'))
1500 || ((ch
>= '0') && (ch
<= '9'))
1508 static char *quote_ref_url(const char *base
, const char *ref
)
1510 struct strbuf buf
= STRBUF_INIT
;
1514 end_url_with_slash(&buf
, base
);
1516 for (cp
= ref
; (ch
= *cp
) != 0; cp
++)
1517 if (needs_quote(ch
))
1518 strbuf_addf(&buf
, "%%%02x", ch
);
1520 strbuf_addch(&buf
, *cp
);
1522 return strbuf_detach(&buf
, NULL
);
1525 void append_remote_object_url(struct strbuf
*buf
, const char *url
,
1527 int only_two_digit_prefix
)
1529 end_url_with_slash(buf
, url
);
1531 strbuf_addf(buf
, "objects/%.*s/", 2, hex
);
1532 if (!only_two_digit_prefix
)
1533 strbuf_addstr(buf
, hex
+ 2);
1536 char *get_remote_object_url(const char *url
, const char *hex
,
1537 int only_two_digit_prefix
)
1539 struct strbuf buf
= STRBUF_INIT
;
1540 append_remote_object_url(&buf
, url
, hex
, only_two_digit_prefix
);
1541 return strbuf_detach(&buf
, NULL
);
1544 void normalize_curl_result(CURLcode
*result
, long http_code
,
1545 char *errorstr
, size_t errorlen
)
1548 * If we see a failing http code with CURLE_OK, we have turned off
1549 * FAILONERROR (to keep the server's custom error response), and should
1550 * translate the code into failure here.
1552 * Likewise, if we see a redirect (30x code), that means we turned off
1553 * redirect-following, and we should treat the result as an error.
1555 if (*result
== CURLE_OK
&& http_code
>= 300) {
1556 *result
= CURLE_HTTP_RETURNED_ERROR
;
1558 * Normally curl will already have put the "reason phrase"
1559 * from the server into curl_errorstr; unfortunately without
1560 * FAILONERROR it is lost, so we can give only the numeric
1563 xsnprintf(errorstr
, errorlen
,
1564 "The requested URL returned error: %ld",
1569 static int handle_curl_result(struct slot_results
*results
)
1571 normalize_curl_result(&results
->curl_result
, results
->http_code
,
1572 curl_errorstr
, sizeof(curl_errorstr
));
1574 if (results
->curl_result
== CURLE_OK
) {
1575 credential_approve(&http_auth
);
1576 if (proxy_auth
.password
)
1577 credential_approve(&proxy_auth
);
1579 } else if (missing_target(results
))
1580 return HTTP_MISSING_TARGET
;
1581 else if (results
->http_code
== 401) {
1582 if (http_auth
.username
&& http_auth
.password
) {
1583 credential_reject(&http_auth
);
1586 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1587 http_auth_methods
&= ~CURLAUTH_GSSNEGOTIATE
;
1588 if (results
->auth_avail
) {
1589 http_auth_methods
&= results
->auth_avail
;
1590 http_auth_methods_restricted
= 1;
1596 if (results
->http_connectcode
== 407)
1597 credential_reject(&proxy_auth
);
1598 #if LIBCURL_VERSION_NUM >= 0x070c00
1599 if (!curl_errorstr
[0])
1600 strlcpy(curl_errorstr
,
1601 curl_easy_strerror(results
->curl_result
),
1602 sizeof(curl_errorstr
));
1608 int run_one_slot(struct active_request_slot
*slot
,
1609 struct slot_results
*results
)
1611 slot
->results
= results
;
1612 if (!start_active_slot(slot
)) {
1613 xsnprintf(curl_errorstr
, sizeof(curl_errorstr
),
1614 "failed to start HTTP request");
1615 return HTTP_START_FAILED
;
1618 run_active_slot(slot
);
1619 return handle_curl_result(results
);
1622 struct curl_slist
*http_copy_default_headers(void)
1624 struct curl_slist
*headers
= NULL
;
1625 const struct string_list_item
*item
;
1627 for_each_string_list_item(item
, &extra_http_headers
)
1628 headers
= curl_slist_append(headers
, item
->string
);
1633 static CURLcode
curlinfo_strbuf(CURL
*curl
, CURLINFO info
, struct strbuf
*buf
)
1639 ret
= curl_easy_getinfo(curl
, info
, &ptr
);
1641 strbuf_addstr(buf
, ptr
);
1646 * Check for and extract a content-type parameter. "raw"
1647 * should be positioned at the start of the potential
1648 * parameter, with any whitespace already removed.
1650 * "name" is the name of the parameter. The value is appended
1653 static int extract_param(const char *raw
, const char *name
,
1656 size_t len
= strlen(name
);
1658 if (strncasecmp(raw
, name
, len
))
1666 while (*raw
&& !isspace(*raw
) && *raw
!= ';')
1667 strbuf_addch(out
, *raw
++);
1672 * Extract a normalized version of the content type, with any
1673 * spaces suppressed, all letters lowercased, and no trailing ";"
1676 * Note that we will silently remove even invalid whitespace. For
1677 * example, "text / plain" is specifically forbidden by RFC 2616,
1678 * but "text/plain" is the only reasonable output, and this keeps
1681 * If the "charset" argument is not NULL, store the value of any
1682 * charset parameter there.
1685 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
1686 * "text / plain" -> "text/plain"
1688 static void extract_content_type(struct strbuf
*raw
, struct strbuf
*type
,
1689 struct strbuf
*charset
)
1694 strbuf_grow(type
, raw
->len
);
1695 for (p
= raw
->buf
; *p
; p
++) {
1702 strbuf_addch(type
, tolower(*p
));
1708 strbuf_reset(charset
);
1710 while (isspace(*p
) || *p
== ';')
1712 if (!extract_param(p
, "charset", charset
))
1714 while (*p
&& !isspace(*p
))
1718 if (!charset
->len
&& starts_with(type
->buf
, "text/"))
1719 strbuf_addstr(charset
, "ISO-8859-1");
1722 static void write_accept_language(struct strbuf
*buf
)
1725 * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than
1726 * that, q-value will be smaller than 0.001, the minimum q-value the
1727 * HTTP specification allows. See
1728 * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value.
1730 const int MAX_DECIMAL_PLACES
= 3;
1731 const int MAX_LANGUAGE_TAGS
= 1000;
1732 const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE
= 4000;
1733 char **language_tags
= NULL
;
1735 const char *s
= get_preferred_languages();
1737 struct strbuf tag
= STRBUF_INIT
;
1739 /* Don't add Accept-Language header if no language is preferred. */
1744 * Split the colon-separated string of preferred languages into
1745 * language_tags array.
1748 /* collect language tag */
1749 for (; *s
&& (isalnum(*s
) || *s
== '_'); s
++)
1750 strbuf_addch(&tag
, *s
== '_' ? '-' : *s
);
1752 /* skip .codeset, @modifier and any other unnecessary parts */
1753 while (*s
&& *s
!= ':')
1758 REALLOC_ARRAY(language_tags
, num_langs
);
1759 language_tags
[num_langs
- 1] = strbuf_detach(&tag
, NULL
);
1760 if (num_langs
>= MAX_LANGUAGE_TAGS
- 1) /* -1 for '*' */
1765 /* write Accept-Language header into buf */
1767 int last_buf_len
= 0;
1773 REALLOC_ARRAY(language_tags
, num_langs
+ 1);
1774 language_tags
[num_langs
++] = "*"; /* it's OK; this won't be freed */
1776 /* compute decimal_places */
1777 for (max_q
= 1, decimal_places
= 0;
1778 max_q
< num_langs
&& decimal_places
<= MAX_DECIMAL_PLACES
;
1779 decimal_places
++, max_q
*= 10)
1782 xsnprintf(q_format
, sizeof(q_format
), ";q=0.%%0%dd", decimal_places
);
1784 strbuf_addstr(buf
, "Accept-Language: ");
1786 for (i
= 0; i
< num_langs
; i
++) {
1788 strbuf_addstr(buf
, ", ");
1790 strbuf_addstr(buf
, language_tags
[i
]);
1793 strbuf_addf(buf
, q_format
, max_q
- i
);
1795 if (buf
->len
> MAX_ACCEPT_LANGUAGE_HEADER_SIZE
) {
1796 strbuf_remove(buf
, last_buf_len
, buf
->len
- last_buf_len
);
1800 last_buf_len
= buf
->len
;
1804 /* free language tags -- last one is a static '*' */
1805 for (i
= 0; i
< num_langs
- 1; i
++)
1806 free(language_tags
[i
]);
1807 free(language_tags
);
1811 * Get an Accept-Language header which indicates user's preferred languages.
1815 * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1"
1816 * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1"
1817 * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1"
1818 * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1"
1819 * LANGUAGE= LANG=C -> ""
1821 static const char *get_accept_language(void)
1823 if (!cached_accept_language
) {
1824 struct strbuf buf
= STRBUF_INIT
;
1825 write_accept_language(&buf
);
1827 cached_accept_language
= strbuf_detach(&buf
, NULL
);
1830 return cached_accept_language
;
1833 static void http_opt_request_remainder(CURL
*curl
, off_t pos
)
1836 xsnprintf(buf
, sizeof(buf
), "%"PRIuMAX
"-", (uintmax_t)pos
);
1837 curl_easy_setopt(curl
, CURLOPT_RANGE
, buf
);
1840 /* http_request() targets */
1841 #define HTTP_REQUEST_STRBUF 0
1842 #define HTTP_REQUEST_FILE 1
1844 static int http_request(const char *url
,
1845 void *result
, int target
,
1846 const struct http_get_options
*options
)
1848 struct active_request_slot
*slot
;
1849 struct slot_results results
;
1850 struct curl_slist
*headers
= http_copy_default_headers();
1851 struct strbuf buf
= STRBUF_INIT
;
1852 const char *accept_language
;
1855 slot
= get_active_slot();
1856 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1858 if (result
== NULL
) {
1859 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 1);
1861 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
1862 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, result
);
1864 if (target
== HTTP_REQUEST_FILE
) {
1865 off_t posn
= ftello(result
);
1866 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1869 http_opt_request_remainder(slot
->curl
, posn
);
1871 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1875 accept_language
= get_accept_language();
1877 if (accept_language
)
1878 headers
= curl_slist_append(headers
, accept_language
);
1880 strbuf_addstr(&buf
, "Pragma:");
1881 if (options
&& options
->no_cache
)
1882 strbuf_addstr(&buf
, " no-cache");
1883 if (options
&& options
->initial_request
&&
1884 http_follow_config
== HTTP_FOLLOW_INITIAL
)
1885 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1887 headers
= curl_slist_append(headers
, buf
.buf
);
1889 /* Add additional headers here */
1890 if (options
&& options
->extra_headers
) {
1891 const struct string_list_item
*item
;
1892 for_each_string_list_item(item
, options
->extra_headers
) {
1893 headers
= curl_slist_append(headers
, item
->string
);
1897 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, url
);
1898 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
1899 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "");
1900 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 0);
1902 ret
= run_one_slot(slot
, &results
);
1904 if (options
&& options
->content_type
) {
1905 struct strbuf raw
= STRBUF_INIT
;
1906 curlinfo_strbuf(slot
->curl
, CURLINFO_CONTENT_TYPE
, &raw
);
1907 extract_content_type(&raw
, options
->content_type
,
1909 strbuf_release(&raw
);
1912 if (options
&& options
->effective_url
)
1913 curlinfo_strbuf(slot
->curl
, CURLINFO_EFFECTIVE_URL
,
1914 options
->effective_url
);
1916 curl_slist_free_all(headers
);
1917 strbuf_release(&buf
);
1923 * Update the "base" url to a more appropriate value, as deduced by
1924 * redirects seen when requesting a URL starting with "url".
1926 * The "asked" parameter is a URL that we asked curl to access, and must begin
1929 * The "got" parameter is the URL that curl reported to us as where we ended
1932 * Returns 1 if we updated the base url, 0 otherwise.
1934 * Our basic strategy is to compare "base" and "asked" to find the bits
1935 * specific to our request. We then strip those bits off of "got" to yield the
1936 * new base. So for example, if our base is "http://example.com/foo.git",
1937 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1938 * with "https://other.example.com/foo.git/info/refs". We would want the
1939 * new URL to become "https://other.example.com/foo.git".
1941 * Note that this assumes a sane redirect scheme. It's entirely possible
1942 * in the example above to end up at a URL that does not even end in
1943 * "info/refs". In such a case we die. There's not much we can do, such a
1944 * scheme is unlikely to represent a real git repository, and failing to
1945 * rewrite the base opens options for malicious redirects to do funny things.
1947 static int update_url_from_redirect(struct strbuf
*base
,
1949 const struct strbuf
*got
)
1954 if (!strcmp(asked
, got
->buf
))
1957 if (!skip_prefix(asked
, base
->buf
, &tail
))
1958 BUG("update_url_from_redirect: %s is not a superset of %s",
1962 if (!strip_suffix_mem(got
->buf
, &new_len
, tail
))
1963 die(_("unable to update url base from redirection:\n"
1969 strbuf_add(base
, got
->buf
, new_len
);
1974 static int http_request_reauth(const char *url
,
1975 void *result
, int target
,
1976 struct http_get_options
*options
)
1978 int ret
= http_request(url
, result
, target
, options
);
1980 if (ret
!= HTTP_OK
&& ret
!= HTTP_REAUTH
)
1983 if (options
&& options
->effective_url
&& options
->base_url
) {
1984 if (update_url_from_redirect(options
->base_url
,
1985 url
, options
->effective_url
)) {
1986 credential_from_url(&http_auth
, options
->base_url
->buf
);
1987 url
= options
->effective_url
->buf
;
1991 if (ret
!= HTTP_REAUTH
)
1995 * The previous request may have put cruft into our output stream; we
1996 * should clear it out before making our next request.
1999 case HTTP_REQUEST_STRBUF
:
2000 strbuf_reset(result
);
2002 case HTTP_REQUEST_FILE
:
2003 if (fflush(result
)) {
2004 error_errno("unable to flush a file");
2005 return HTTP_START_FAILED
;
2008 if (ftruncate(fileno(result
), 0) < 0) {
2009 error_errno("unable to truncate a file");
2010 return HTTP_START_FAILED
;
2014 BUG("Unknown http_request target");
2017 credential_fill(&http_auth
);
2019 return http_request(url
, result
, target
, options
);
2022 int http_get_strbuf(const char *url
,
2023 struct strbuf
*result
,
2024 struct http_get_options
*options
)
2026 return http_request_reauth(url
, result
, HTTP_REQUEST_STRBUF
, options
);
2030 * Downloads a URL and stores the result in the given file.
2032 * If a previous interrupted download is detected (i.e. a previous temporary
2033 * file is still around) the download is resumed.
2035 static int http_get_file(const char *url
, const char *filename
,
2036 struct http_get_options
*options
)
2039 struct strbuf tmpfile
= STRBUF_INIT
;
2042 strbuf_addf(&tmpfile
, "%s.temp", filename
);
2043 result
= fopen(tmpfile
.buf
, "a");
2045 error("Unable to open local file %s", tmpfile
.buf
);
2050 ret
= http_request_reauth(url
, result
, HTTP_REQUEST_FILE
, options
);
2053 if (ret
== HTTP_OK
&& finalize_object_file(tmpfile
.buf
, filename
))
2056 strbuf_release(&tmpfile
);
2060 int http_fetch_ref(const char *base
, struct ref
*ref
)
2062 struct http_get_options options
= {0};
2064 struct strbuf buffer
= STRBUF_INIT
;
2067 options
.no_cache
= 1;
2069 url
= quote_ref_url(base
, ref
->name
);
2070 if (http_get_strbuf(url
, &buffer
, &options
) == HTTP_OK
) {
2071 strbuf_rtrim(&buffer
);
2072 if (buffer
.len
== the_hash_algo
->hexsz
)
2073 ret
= get_oid_hex(buffer
.buf
, &ref
->old_oid
);
2074 else if (starts_with(buffer
.buf
, "ref: ")) {
2075 ref
->symref
= xstrdup(buffer
.buf
+ 5);
2080 strbuf_release(&buffer
);
2085 /* Helpers for fetching packs */
2086 static char *fetch_pack_index(unsigned char *hash
, const char *base_url
)
2089 struct strbuf buf
= STRBUF_INIT
;
2091 if (http_is_verbose
)
2092 fprintf(stderr
, "Getting index for pack %s\n", hash_to_hex(hash
));
2094 end_url_with_slash(&buf
, base_url
);
2095 strbuf_addf(&buf
, "objects/pack/pack-%s.idx", hash_to_hex(hash
));
2096 url
= strbuf_detach(&buf
, NULL
);
2098 strbuf_addf(&buf
, "%s.temp", sha1_pack_index_name(hash
));
2099 tmp
= strbuf_detach(&buf
, NULL
);
2101 if (http_get_file(url
, tmp
, NULL
) != HTTP_OK
) {
2102 error("Unable to get pack index %s", url
);
2110 static int fetch_and_setup_pack_index(struct packed_git
**packs_head
,
2111 unsigned char *sha1
, const char *base_url
)
2113 struct packed_git
*new_pack
;
2114 char *tmp_idx
= NULL
;
2117 if (has_pack_index(sha1
)) {
2118 new_pack
= parse_pack_index(sha1
, sha1_pack_index_name(sha1
));
2120 return -1; /* parse_pack_index() already issued error message */
2124 tmp_idx
= fetch_pack_index(sha1
, base_url
);
2128 new_pack
= parse_pack_index(sha1
, tmp_idx
);
2133 return -1; /* parse_pack_index() already issued error message */
2136 ret
= verify_pack_index(new_pack
);
2138 close_pack_index(new_pack
);
2139 ret
= finalize_object_file(tmp_idx
, sha1_pack_index_name(sha1
));
2146 new_pack
->next
= *packs_head
;
2147 *packs_head
= new_pack
;
2151 int http_get_info_packs(const char *base_url
, struct packed_git
**packs_head
)
2153 struct http_get_options options
= {0};
2157 struct strbuf buf
= STRBUF_INIT
;
2158 struct object_id oid
;
2160 end_url_with_slash(&buf
, base_url
);
2161 strbuf_addstr(&buf
, "objects/info/packs");
2162 url
= strbuf_detach(&buf
, NULL
);
2164 options
.no_cache
= 1;
2165 ret
= http_get_strbuf(url
, &buf
, &options
);
2171 if (skip_prefix(data
, "P pack-", &data
) &&
2172 !parse_oid_hex(data
, &oid
, &data
) &&
2173 skip_prefix(data
, ".pack", &data
) &&
2174 (*data
== '\n' || *data
== '\0')) {
2175 fetch_and_setup_pack_index(packs_head
, oid
.hash
, base_url
);
2177 data
= strchrnul(data
, '\n');
2180 data
++; /* skip past newline */
2188 void release_http_pack_request(struct http_pack_request
*preq
)
2190 if (preq
->packfile
!= NULL
) {
2191 fclose(preq
->packfile
);
2192 preq
->packfile
= NULL
;
2195 strbuf_release(&preq
->tmpfile
);
2200 int finish_http_pack_request(struct http_pack_request
*preq
)
2202 struct packed_git
**lst
;
2203 struct packed_git
*p
= preq
->target
;
2206 struct child_process ip
= CHILD_PROCESS_INIT
;
2208 close_pack_index(p
);
2210 fclose(preq
->packfile
);
2211 preq
->packfile
= NULL
;
2215 lst
= &((*lst
)->next
);
2216 *lst
= (*lst
)->next
;
2218 if (!strip_suffix(preq
->tmpfile
.buf
, ".pack.temp", &len
))
2219 BUG("pack tmpfile does not end in .pack.temp?");
2220 tmp_idx
= xstrfmt("%.*s.idx.temp", (int)len
, preq
->tmpfile
.buf
);
2222 argv_array_push(&ip
.args
, "index-pack");
2223 argv_array_pushl(&ip
.args
, "-o", tmp_idx
, NULL
);
2224 argv_array_push(&ip
.args
, preq
->tmpfile
.buf
);
2229 if (run_command(&ip
)) {
2230 unlink(preq
->tmpfile
.buf
);
2236 unlink(sha1_pack_index_name(p
->hash
));
2238 if (finalize_object_file(preq
->tmpfile
.buf
, sha1_pack_name(p
->hash
))
2239 || finalize_object_file(tmp_idx
, sha1_pack_index_name(p
->hash
))) {
2244 install_packed_git(the_repository
, p
);
2249 struct http_pack_request
*new_http_pack_request(
2250 struct packed_git
*target
, const char *base_url
)
2252 off_t prev_posn
= 0;
2253 struct strbuf buf
= STRBUF_INIT
;
2254 struct http_pack_request
*preq
;
2256 preq
= xcalloc(1, sizeof(*preq
));
2257 strbuf_init(&preq
->tmpfile
, 0);
2258 preq
->target
= target
;
2260 end_url_with_slash(&buf
, base_url
);
2261 strbuf_addf(&buf
, "objects/pack/pack-%s.pack",
2262 hash_to_hex(target
->hash
));
2263 preq
->url
= strbuf_detach(&buf
, NULL
);
2265 strbuf_addf(&preq
->tmpfile
, "%s.temp", sha1_pack_name(target
->hash
));
2266 preq
->packfile
= fopen(preq
->tmpfile
.buf
, "a");
2267 if (!preq
->packfile
) {
2268 error("Unable to open local file %s for pack",
2273 preq
->slot
= get_active_slot();
2274 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_FILE
, preq
->packfile
);
2275 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite
);
2276 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_URL
, preq
->url
);
2277 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
2281 * If there is data present from a previous transfer attempt,
2282 * resume where it left off
2284 prev_posn
= ftello(preq
->packfile
);
2286 if (http_is_verbose
)
2288 "Resuming fetch of pack %s at byte %"PRIuMAX
"\n",
2289 hash_to_hex(target
->hash
),
2290 (uintmax_t)prev_posn
);
2291 http_opt_request_remainder(preq
->slot
->curl
, prev_posn
);
2297 strbuf_release(&preq
->tmpfile
);
2303 /* Helpers for fetching objects (loose) */
2304 static size_t fwrite_sha1_file(char *ptr
, size_t eltsize
, size_t nmemb
,
2307 unsigned char expn
[4096];
2308 size_t size
= eltsize
* nmemb
;
2310 struct http_object_request
*freq
= data
;
2311 struct active_request_slot
*slot
= freq
->slot
;
2314 CURLcode c
= curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
,
2317 BUG("curl_easy_getinfo for HTTP code failed: %s",
2318 curl_easy_strerror(c
));
2319 if (slot
->http_code
>= 300)
2324 ssize_t retval
= xwrite(freq
->localfile
,
2325 (char *) ptr
+ posn
, size
- posn
);
2327 return posn
/ eltsize
;
2329 } while (posn
< size
);
2331 freq
->stream
.avail_in
= size
;
2332 freq
->stream
.next_in
= (void *)ptr
;
2334 freq
->stream
.next_out
= expn
;
2335 freq
->stream
.avail_out
= sizeof(expn
);
2336 freq
->zret
= git_inflate(&freq
->stream
, Z_SYNC_FLUSH
);
2337 the_hash_algo
->update_fn(&freq
->c
, expn
,
2338 sizeof(expn
) - freq
->stream
.avail_out
);
2339 } while (freq
->stream
.avail_in
&& freq
->zret
== Z_OK
);
2343 struct http_object_request
*new_http_object_request(const char *base_url
,
2344 const struct object_id
*oid
)
2346 char *hex
= oid_to_hex(oid
);
2347 struct strbuf filename
= STRBUF_INIT
;
2348 struct strbuf prevfile
= STRBUF_INIT
;
2350 char prev_buf
[PREV_BUF_SIZE
];
2351 ssize_t prev_read
= 0;
2352 off_t prev_posn
= 0;
2353 struct http_object_request
*freq
;
2355 freq
= xcalloc(1, sizeof(*freq
));
2356 strbuf_init(&freq
->tmpfile
, 0);
2357 oidcpy(&freq
->oid
, oid
);
2358 freq
->localfile
= -1;
2360 loose_object_path(the_repository
, &filename
, oid
);
2361 strbuf_addf(&freq
->tmpfile
, "%s.temp", filename
.buf
);
2363 strbuf_addf(&prevfile
, "%s.prev", filename
.buf
);
2364 unlink_or_warn(prevfile
.buf
);
2365 rename(freq
->tmpfile
.buf
, prevfile
.buf
);
2366 unlink_or_warn(freq
->tmpfile
.buf
);
2367 strbuf_release(&filename
);
2369 if (freq
->localfile
!= -1)
2370 error("fd leakage in start: %d", freq
->localfile
);
2371 freq
->localfile
= open(freq
->tmpfile
.buf
,
2372 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2374 * This could have failed due to the "lazy directory creation";
2375 * try to mkdir the last path component.
2377 if (freq
->localfile
< 0 && errno
== ENOENT
) {
2378 char *dir
= strrchr(freq
->tmpfile
.buf
, '/');
2381 mkdir(freq
->tmpfile
.buf
, 0777);
2384 freq
->localfile
= open(freq
->tmpfile
.buf
,
2385 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2388 if (freq
->localfile
< 0) {
2389 error_errno("Couldn't create temporary file %s",
2394 git_inflate_init(&freq
->stream
);
2396 the_hash_algo
->init_fn(&freq
->c
);
2398 freq
->url
= get_remote_object_url(base_url
, hex
, 0);
2401 * If a previous temp file is present, process what was already
2404 prevlocal
= open(prevfile
.buf
, O_RDONLY
);
2405 if (prevlocal
!= -1) {
2407 prev_read
= xread(prevlocal
, prev_buf
, PREV_BUF_SIZE
);
2409 if (fwrite_sha1_file(prev_buf
,
2412 freq
) == prev_read
) {
2413 prev_posn
+= prev_read
;
2418 } while (prev_read
> 0);
2421 unlink_or_warn(prevfile
.buf
);
2422 strbuf_release(&prevfile
);
2425 * Reset inflate/SHA1 if there was an error reading the previous temp
2426 * file; also rewind to the beginning of the local file.
2428 if (prev_read
== -1) {
2429 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
2430 git_inflate_init(&freq
->stream
);
2431 the_hash_algo
->init_fn(&freq
->c
);
2434 lseek(freq
->localfile
, 0, SEEK_SET
);
2435 if (ftruncate(freq
->localfile
, 0) < 0) {
2436 error_errno("Couldn't truncate temporary file %s",
2443 freq
->slot
= get_active_slot();
2445 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FILE
, freq
);
2446 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FAILONERROR
, 0);
2447 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_sha1_file
);
2448 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_ERRORBUFFER
, freq
->errorstr
);
2449 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_URL
, freq
->url
);
2450 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_HTTPHEADER
, no_pragma_header
);
2453 * If we have successfully processed data from a previous fetch
2454 * attempt, only fetch the data we don't already have.
2457 if (http_is_verbose
)
2459 "Resuming fetch of object %s at byte %"PRIuMAX
"\n",
2460 hex
, (uintmax_t)prev_posn
);
2461 http_opt_request_remainder(freq
->slot
->curl
, prev_posn
);
2467 strbuf_release(&prevfile
);
2473 void process_http_object_request(struct http_object_request
*freq
)
2475 if (freq
->slot
== NULL
)
2477 freq
->curl_result
= freq
->slot
->curl_result
;
2478 freq
->http_code
= freq
->slot
->http_code
;
2482 int finish_http_object_request(struct http_object_request
*freq
)
2485 struct strbuf filename
= STRBUF_INIT
;
2487 close(freq
->localfile
);
2488 freq
->localfile
= -1;
2490 process_http_object_request(freq
);
2492 if (freq
->http_code
== 416) {
2493 warning("requested range invalid; we may already have all the data.");
2494 } else if (freq
->curl_result
!= CURLE_OK
) {
2495 if (stat(freq
->tmpfile
.buf
, &st
) == 0)
2496 if (st
.st_size
== 0)
2497 unlink_or_warn(freq
->tmpfile
.buf
);
2501 git_inflate_end(&freq
->stream
);
2502 the_hash_algo
->final_fn(freq
->real_oid
.hash
, &freq
->c
);
2503 if (freq
->zret
!= Z_STREAM_END
) {
2504 unlink_or_warn(freq
->tmpfile
.buf
);
2507 if (!oideq(&freq
->oid
, &freq
->real_oid
)) {
2508 unlink_or_warn(freq
->tmpfile
.buf
);
2511 loose_object_path(the_repository
, &filename
, &freq
->oid
);
2512 freq
->rename
= finalize_object_file(freq
->tmpfile
.buf
, filename
.buf
);
2513 strbuf_release(&filename
);
2515 return freq
->rename
;
2518 void abort_http_object_request(struct http_object_request
*freq
)
2520 unlink_or_warn(freq
->tmpfile
.buf
);
2522 release_http_object_request(freq
);
2525 void release_http_object_request(struct http_object_request
*freq
)
2527 if (freq
->localfile
!= -1) {
2528 close(freq
->localfile
);
2529 freq
->localfile
= -1;
2531 FREE_AND_NULL(freq
->url
);
2532 if (freq
->slot
!= NULL
) {
2533 freq
->slot
->callback_func
= NULL
;
2534 freq
->slot
->callback_data
= NULL
;
2535 release_active_slot(freq
->slot
);
2538 strbuf_release(&freq
->tmpfile
);