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
,
515 is_rfc3986_unreserved
);
516 strbuf_addch(&s
, ':');
517 strbuf_addstr_urlencode(&s
, proxy_auth
.password
,
518 is_rfc3986_unreserved
);
519 curl_proxyuserpwd
= strbuf_detach(&s
, NULL
);
520 curl_easy_setopt(result
, CURLOPT_PROXYUSERPWD
, curl_proxyuserpwd
);
524 static void init_curl_proxy_auth(CURL
*result
)
526 if (proxy_auth
.username
) {
527 if (!proxy_auth
.password
)
528 credential_fill(&proxy_auth
);
529 set_proxyauth_name_password(result
);
532 var_override(&http_proxy_authmethod
, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
534 #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
535 if (http_proxy_authmethod
) {
537 for (i
= 0; i
< ARRAY_SIZE(proxy_authmethods
); i
++) {
538 if (!strcmp(http_proxy_authmethod
, proxy_authmethods
[i
].name
)) {
539 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
,
540 proxy_authmethods
[i
].curlauth_param
);
544 if (i
== ARRAY_SIZE(proxy_authmethods
)) {
545 warning("unsupported proxy authentication method %s: using anyauth",
546 http_proxy_authmethod
);
547 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
551 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
555 static int has_cert_password(void)
557 if (ssl_cert
== NULL
|| ssl_cert_password_required
!= 1)
559 if (!cert_auth
.password
) {
560 cert_auth
.protocol
= xstrdup("cert");
561 cert_auth
.username
= xstrdup("");
562 cert_auth
.path
= xstrdup(ssl_cert
);
563 credential_fill(&cert_auth
);
568 #if LIBCURL_VERSION_NUM >= 0x071900
569 static void set_curl_keepalive(CURL
*c
)
571 curl_easy_setopt(c
, CURLOPT_TCP_KEEPALIVE
, 1);
574 #elif LIBCURL_VERSION_NUM >= 0x071000
575 static int sockopt_callback(void *client
, curl_socket_t fd
, curlsocktype type
)
579 socklen_t len
= (socklen_t
)sizeof(ka
);
581 if (type
!= CURLSOCKTYPE_IPCXN
)
584 rc
= setsockopt(fd
, SOL_SOCKET
, SO_KEEPALIVE
, (void *)&ka
, len
);
586 warning_errno("unable to set SO_KEEPALIVE on socket");
588 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
591 static void set_curl_keepalive(CURL
*c
)
593 curl_easy_setopt(c
, CURLOPT_SOCKOPTFUNCTION
, sockopt_callback
);
597 static void set_curl_keepalive(CURL
*c
)
599 /* not supported on older curl versions */
603 static void redact_sensitive_header(struct strbuf
*header
)
605 const char *sensitive_header
;
607 if (skip_prefix(header
->buf
, "Authorization:", &sensitive_header
) ||
608 skip_prefix(header
->buf
, "Proxy-Authorization:", &sensitive_header
)) {
609 /* The first token is the type, which is OK to log */
610 while (isspace(*sensitive_header
))
612 while (*sensitive_header
&& !isspace(*sensitive_header
))
614 /* Everything else is opaque and possibly sensitive */
615 strbuf_setlen(header
, sensitive_header
- header
->buf
);
616 strbuf_addstr(header
, " <redacted>");
617 } else if (cookies_to_redact
.nr
&&
618 skip_prefix(header
->buf
, "Cookie:", &sensitive_header
)) {
619 struct strbuf redacted_header
= STRBUF_INIT
;
622 while (isspace(*sensitive_header
))
626 * The contents of header starting from sensitive_header will
627 * subsequently be overridden, so it is fine to mutate this
628 * string (hence the assignment to "char *").
630 cookie
= (char *) sensitive_header
;
634 char *semicolon
= strstr(cookie
, "; ");
637 equals
= strchrnul(cookie
, '=');
639 /* invalid cookie, just append and continue */
640 strbuf_addstr(&redacted_header
, cookie
);
643 *equals
= 0; /* temporarily set to NUL for lookup */
644 if (string_list_lookup(&cookies_to_redact
, cookie
)) {
645 strbuf_addstr(&redacted_header
, cookie
);
646 strbuf_addstr(&redacted_header
, "=<redacted>");
649 strbuf_addstr(&redacted_header
, cookie
);
653 * There are more cookies. (Or, for some
654 * reason, the input string ends in "; ".)
656 strbuf_addstr(&redacted_header
, "; ");
657 cookie
= semicolon
+ strlen("; ");
663 strbuf_setlen(header
, sensitive_header
- header
->buf
);
664 strbuf_addbuf(header
, &redacted_header
);
668 static void curl_dump_header(const char *text
, unsigned char *ptr
, size_t size
, int hide_sensitive_header
)
670 struct strbuf out
= STRBUF_INIT
;
671 struct strbuf
**headers
, **header
;
673 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
674 text
, (long)size
, (long)size
);
675 trace_strbuf(&trace_curl
, &out
);
677 strbuf_add(&out
, ptr
, size
);
678 headers
= strbuf_split_max(&out
, '\n', 0);
680 for (header
= headers
; *header
; header
++) {
681 if (hide_sensitive_header
)
682 redact_sensitive_header(*header
);
683 strbuf_insert((*header
), 0, text
, strlen(text
));
684 strbuf_insert((*header
), strlen(text
), ": ", 2);
685 strbuf_rtrim((*header
));
686 strbuf_addch((*header
), '\n');
687 trace_strbuf(&trace_curl
, (*header
));
689 strbuf_list_free(headers
);
690 strbuf_release(&out
);
693 static void curl_dump_data(const char *text
, unsigned char *ptr
, size_t size
)
696 struct strbuf out
= STRBUF_INIT
;
697 unsigned int width
= 60;
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 for (i
= 0; i
< size
; i
+= width
) {
707 strbuf_addf(&out
, "%s: ", text
);
708 for (w
= 0; (w
< width
) && (i
+ w
< size
); w
++) {
709 unsigned char ch
= ptr
[i
+ w
];
712 (ch
>= 0x20) && (ch
< 0x80)
715 strbuf_addch(&out
, '\n');
716 trace_strbuf(&trace_curl
, &out
);
718 strbuf_release(&out
);
721 static int curl_trace(CURL
*handle
, curl_infotype type
, char *data
, size_t size
, void *userp
)
724 enum { NO_FILTER
= 0, DO_FILTER
= 1 };
728 trace_printf_key(&trace_curl
, "== Info: %s", data
);
730 case CURLINFO_HEADER_OUT
:
731 text
= "=> Send header";
732 curl_dump_header(text
, (unsigned char *)data
, size
, DO_FILTER
);
734 case CURLINFO_DATA_OUT
:
735 if (trace_curl_data
) {
736 text
= "=> Send data";
737 curl_dump_data(text
, (unsigned char *)data
, size
);
740 case CURLINFO_SSL_DATA_OUT
:
741 if (trace_curl_data
) {
742 text
= "=> Send SSL data";
743 curl_dump_data(text
, (unsigned char *)data
, size
);
746 case CURLINFO_HEADER_IN
:
747 text
= "<= Recv header";
748 curl_dump_header(text
, (unsigned char *)data
, size
, NO_FILTER
);
750 case CURLINFO_DATA_IN
:
751 if (trace_curl_data
) {
752 text
= "<= Recv data";
753 curl_dump_data(text
, (unsigned char *)data
, size
);
756 case CURLINFO_SSL_DATA_IN
:
757 if (trace_curl_data
) {
758 text
= "<= Recv SSL data";
759 curl_dump_data(text
, (unsigned char *)data
, size
);
763 default: /* we ignore unknown types by default */
769 void setup_curl_trace(CURL
*handle
)
771 if (!trace_want(&trace_curl
))
773 curl_easy_setopt(handle
, CURLOPT_VERBOSE
, 1L);
774 curl_easy_setopt(handle
, CURLOPT_DEBUGFUNCTION
, curl_trace
);
775 curl_easy_setopt(handle
, CURLOPT_DEBUGDATA
, NULL
);
778 #ifdef CURLPROTO_HTTP
779 static long get_curl_allowed_protocols(int from_user
)
781 long allowed_protocols
= 0;
783 if (is_transport_allowed("http", from_user
))
784 allowed_protocols
|= CURLPROTO_HTTP
;
785 if (is_transport_allowed("https", from_user
))
786 allowed_protocols
|= CURLPROTO_HTTPS
;
787 if (is_transport_allowed("ftp", from_user
))
788 allowed_protocols
|= CURLPROTO_FTP
;
789 if (is_transport_allowed("ftps", from_user
))
790 allowed_protocols
|= CURLPROTO_FTPS
;
792 return allowed_protocols
;
796 #if LIBCURL_VERSION_NUM >=0x072f00
797 static int get_curl_http_version_opt(const char *version_string
, long *opt
)
804 { "HTTP/1.1", CURL_HTTP_VERSION_1_1
},
805 { "HTTP/2", CURL_HTTP_VERSION_2
}
808 for (i
= 0; i
< ARRAY_SIZE(choice
); i
++) {
809 if (!strcmp(version_string
, choice
[i
].name
)) {
810 *opt
= choice
[i
].opt_token
;
815 warning("unknown value given to http.version: '%s'", version_string
);
816 return -1; /* not found */
821 static CURL
*get_curl_handle(void)
823 CURL
*result
= curl_easy_init();
826 die("curl_easy_init failed");
828 if (!curl_ssl_verify
) {
829 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 0);
830 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 0);
832 /* Verify authenticity of the peer's certificate */
833 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 1);
834 /* The name in the cert must match whom we tried to connect */
835 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 2);
838 #if LIBCURL_VERSION_NUM >= 0x072f00 // 7.47.0
839 if (curl_http_version
) {
841 if (!get_curl_http_version_opt(curl_http_version
, &opt
)) {
842 /* Set request use http version */
843 curl_easy_setopt(result
, CURLOPT_HTTP_VERSION
, opt
);
848 #if LIBCURL_VERSION_NUM >= 0x070907
849 curl_easy_setopt(result
, CURLOPT_NETRC
, CURL_NETRC_OPTIONAL
);
851 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
852 curl_easy_setopt(result
, CURLOPT_HTTPAUTH
, CURLAUTH_ANY
);
855 #ifdef CURLGSSAPI_DELEGATION_FLAG
858 for (i
= 0; i
< ARRAY_SIZE(curl_deleg_levels
); i
++) {
859 if (!strcmp(curl_deleg
, curl_deleg_levels
[i
].name
)) {
860 curl_easy_setopt(result
, CURLOPT_GSSAPI_DELEGATION
,
861 curl_deleg_levels
[i
].curl_deleg_param
);
865 if (i
== ARRAY_SIZE(curl_deleg_levels
))
866 warning("Unknown delegation method '%s': using default",
871 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
872 !http_schannel_check_revoke
) {
873 #if LIBCURL_VERSION_NUM >= 0x072c00
874 curl_easy_setopt(result
, CURLOPT_SSL_OPTIONS
, CURLSSLOPT_NO_REVOKE
);
876 warning(_("CURLSSLOPT_NO_REVOKE not supported with cURL < 7.44.0"));
880 if (http_proactive_auth
)
881 init_curl_http_auth(result
);
883 if (getenv("GIT_SSL_VERSION"))
884 ssl_version
= getenv("GIT_SSL_VERSION");
885 if (ssl_version
&& *ssl_version
) {
887 for (i
= 0; i
< ARRAY_SIZE(sslversions
); i
++) {
888 if (!strcmp(ssl_version
, sslversions
[i
].name
)) {
889 curl_easy_setopt(result
, CURLOPT_SSLVERSION
,
890 sslversions
[i
].ssl_version
);
894 if (i
== ARRAY_SIZE(sslversions
))
895 warning("unsupported ssl version %s: using default",
899 if (getenv("GIT_SSL_CIPHER_LIST"))
900 ssl_cipherlist
= getenv("GIT_SSL_CIPHER_LIST");
901 if (ssl_cipherlist
!= NULL
&& *ssl_cipherlist
)
902 curl_easy_setopt(result
, CURLOPT_SSL_CIPHER_LIST
,
905 if (ssl_cert
!= NULL
)
906 curl_easy_setopt(result
, CURLOPT_SSLCERT
, ssl_cert
);
907 if (has_cert_password())
908 curl_easy_setopt(result
, CURLOPT_KEYPASSWD
, cert_auth
.password
);
909 #if LIBCURL_VERSION_NUM >= 0x070903
911 curl_easy_setopt(result
, CURLOPT_SSLKEY
, ssl_key
);
913 #if LIBCURL_VERSION_NUM >= 0x070908
914 if (ssl_capath
!= NULL
)
915 curl_easy_setopt(result
, CURLOPT_CAPATH
, ssl_capath
);
917 #if LIBCURL_VERSION_NUM >= 0x072c00
918 if (ssl_pinnedkey
!= NULL
)
919 curl_easy_setopt(result
, CURLOPT_PINNEDPUBLICKEY
, ssl_pinnedkey
);
921 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
922 !http_schannel_use_ssl_cainfo
) {
923 curl_easy_setopt(result
, CURLOPT_CAINFO
, NULL
);
924 #if LIBCURL_VERSION_NUM >= 0x073400
925 curl_easy_setopt(result
, CURLOPT_PROXY_CAINFO
, NULL
);
927 } else if (ssl_cainfo
!= NULL
)
928 curl_easy_setopt(result
, CURLOPT_CAINFO
, ssl_cainfo
);
930 if (curl_low_speed_limit
> 0 && curl_low_speed_time
> 0) {
931 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_LIMIT
,
932 curl_low_speed_limit
);
933 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_TIME
,
934 curl_low_speed_time
);
937 curl_easy_setopt(result
, CURLOPT_MAXREDIRS
, 20);
938 #if LIBCURL_VERSION_NUM >= 0x071301
939 curl_easy_setopt(result
, CURLOPT_POSTREDIR
, CURL_REDIR_POST_ALL
);
940 #elif LIBCURL_VERSION_NUM >= 0x071101
941 curl_easy_setopt(result
, CURLOPT_POST301
, 1);
943 #ifdef CURLPROTO_HTTP
944 curl_easy_setopt(result
, CURLOPT_REDIR_PROTOCOLS
,
945 get_curl_allowed_protocols(0));
946 curl_easy_setopt(result
, CURLOPT_PROTOCOLS
,
947 get_curl_allowed_protocols(-1));
949 warning(_("Protocol restrictions not supported with cURL < 7.19.4"));
951 if (getenv("GIT_CURL_VERBOSE"))
952 curl_easy_setopt(result
, CURLOPT_VERBOSE
, 1L);
953 setup_curl_trace(result
);
954 if (getenv("GIT_TRACE_CURL_NO_DATA"))
956 if (getenv("GIT_REDACT_COOKIES")) {
957 string_list_split(&cookies_to_redact
,
958 getenv("GIT_REDACT_COOKIES"), ',', -1);
959 string_list_sort(&cookies_to_redact
);
962 curl_easy_setopt(result
, CURLOPT_USERAGENT
,
963 user_agent
? user_agent
: git_user_agent());
965 if (curl_ftp_no_epsv
)
966 curl_easy_setopt(result
, CURLOPT_FTP_USE_EPSV
, 0);
968 #ifdef CURLOPT_USE_SSL
970 curl_easy_setopt(result
, CURLOPT_USE_SSL
, CURLUSESSL_TRY
);
974 * CURL also examines these variables as a fallback; but we need to query
975 * them here in order to decide whether to prompt for missing password (cf.
976 * init_curl_proxy_auth()).
978 * Unlike many other common environment variables, these are historically
979 * lowercase only. It appears that CURL did not know this and implemented
980 * only uppercase variants, which was later corrected to take both - with
981 * the exception of http_proxy, which is lowercase only also in CURL. As
982 * the lowercase versions are the historical quasi-standard, they take
983 * precedence here, as in CURL.
985 if (!curl_http_proxy
) {
986 if (http_auth
.protocol
&& !strcmp(http_auth
.protocol
, "https")) {
987 var_override(&curl_http_proxy
, getenv("HTTPS_PROXY"));
988 var_override(&curl_http_proxy
, getenv("https_proxy"));
990 var_override(&curl_http_proxy
, getenv("http_proxy"));
992 if (!curl_http_proxy
) {
993 var_override(&curl_http_proxy
, getenv("ALL_PROXY"));
994 var_override(&curl_http_proxy
, getenv("all_proxy"));
998 if (curl_http_proxy
&& curl_http_proxy
[0] == '\0') {
1000 * Handle case with the empty http.proxy value here to keep
1001 * common code clean.
1002 * NB: empty option disables proxying at all.
1004 curl_easy_setopt(result
, CURLOPT_PROXY
, "");
1005 } else if (curl_http_proxy
) {
1006 #if LIBCURL_VERSION_NUM >= 0x071800
1007 if (starts_with(curl_http_proxy
, "socks5h"))
1008 curl_easy_setopt(result
,
1009 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5_HOSTNAME
);
1010 else if (starts_with(curl_http_proxy
, "socks5"))
1011 curl_easy_setopt(result
,
1012 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5
);
1013 else if (starts_with(curl_http_proxy
, "socks4a"))
1014 curl_easy_setopt(result
,
1015 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4A
);
1016 else if (starts_with(curl_http_proxy
, "socks"))
1017 curl_easy_setopt(result
,
1018 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4
);
1020 #if LIBCURL_VERSION_NUM >= 0x073400
1021 else if (starts_with(curl_http_proxy
, "https"))
1022 curl_easy_setopt(result
,
1023 CURLOPT_PROXYTYPE
, CURLPROXY_HTTPS
);
1025 if (strstr(curl_http_proxy
, "://"))
1026 credential_from_url(&proxy_auth
, curl_http_proxy
);
1028 struct strbuf url
= STRBUF_INIT
;
1029 strbuf_addf(&url
, "http://%s", curl_http_proxy
);
1030 credential_from_url(&proxy_auth
, url
.buf
);
1031 strbuf_release(&url
);
1034 if (!proxy_auth
.host
)
1035 die("Invalid proxy URL '%s'", curl_http_proxy
);
1037 curl_easy_setopt(result
, CURLOPT_PROXY
, proxy_auth
.host
);
1038 #if LIBCURL_VERSION_NUM >= 0x071304
1039 var_override(&curl_no_proxy
, getenv("NO_PROXY"));
1040 var_override(&curl_no_proxy
, getenv("no_proxy"));
1041 curl_easy_setopt(result
, CURLOPT_NOPROXY
, curl_no_proxy
);
1044 init_curl_proxy_auth(result
);
1046 set_curl_keepalive(result
);
1051 static void set_from_env(const char **var
, const char *envname
)
1053 const char *val
= getenv(envname
);
1058 void http_init(struct remote
*remote
, const char *url
, int proactive_auth
)
1060 char *low_speed_limit
;
1061 char *low_speed_time
;
1062 char *normalized_url
;
1063 struct urlmatch_config config
= { STRING_LIST_INIT_DUP
};
1065 config
.section
= "http";
1067 config
.collect_fn
= http_options
;
1068 config
.cascade_fn
= git_default_config
;
1071 http_is_verbose
= 0;
1072 normalized_url
= url_normalize(url
, &config
.url
);
1074 git_config(urlmatch_config_entry
, &config
);
1075 free(normalized_url
);
1076 string_list_clear(&config
.vars
, 1);
1078 #if LIBCURL_VERSION_NUM >= 0x073800
1079 if (http_ssl_backend
) {
1080 const curl_ssl_backend
**backends
;
1081 struct strbuf buf
= STRBUF_INIT
;
1084 switch (curl_global_sslset(-1, http_ssl_backend
, &backends
)) {
1085 case CURLSSLSET_UNKNOWN_BACKEND
:
1086 strbuf_addf(&buf
, _("Unsupported SSL backend '%s'. "
1087 "Supported SSL backends:"),
1089 for (i
= 0; backends
[i
]; i
++)
1090 strbuf_addf(&buf
, "\n\t%s", backends
[i
]->name
);
1092 case CURLSSLSET_NO_BACKENDS
:
1093 die(_("Could not set SSL backend to '%s': "
1094 "cURL was built without SSL backends"),
1096 case CURLSSLSET_TOO_LATE
:
1097 die(_("Could not set SSL backend to '%s': already set"),
1105 if (curl_global_init(CURL_GLOBAL_ALL
) != CURLE_OK
)
1106 die("curl_global_init failed");
1108 http_proactive_auth
= proactive_auth
;
1110 if (remote
&& remote
->http_proxy
)
1111 curl_http_proxy
= xstrdup(remote
->http_proxy
);
1114 var_override(&http_proxy_authmethod
, remote
->http_proxy_authmethod
);
1116 pragma_header
= curl_slist_append(http_copy_default_headers(),
1117 "Pragma: no-cache");
1118 no_pragma_header
= curl_slist_append(http_copy_default_headers(),
1121 #ifdef USE_CURL_MULTI
1123 char *http_max_requests
= getenv("GIT_HTTP_MAX_REQUESTS");
1124 if (http_max_requests
!= NULL
)
1125 max_requests
= atoi(http_max_requests
);
1128 curlm
= curl_multi_init();
1130 die("curl_multi_init failed");
1133 if (getenv("GIT_SSL_NO_VERIFY"))
1134 curl_ssl_verify
= 0;
1136 set_from_env(&ssl_cert
, "GIT_SSL_CERT");
1137 #if LIBCURL_VERSION_NUM >= 0x070903
1138 set_from_env(&ssl_key
, "GIT_SSL_KEY");
1140 #if LIBCURL_VERSION_NUM >= 0x070908
1141 set_from_env(&ssl_capath
, "GIT_SSL_CAPATH");
1143 set_from_env(&ssl_cainfo
, "GIT_SSL_CAINFO");
1145 set_from_env(&user_agent
, "GIT_HTTP_USER_AGENT");
1147 low_speed_limit
= getenv("GIT_HTTP_LOW_SPEED_LIMIT");
1148 if (low_speed_limit
!= NULL
)
1149 curl_low_speed_limit
= strtol(low_speed_limit
, NULL
, 10);
1150 low_speed_time
= getenv("GIT_HTTP_LOW_SPEED_TIME");
1151 if (low_speed_time
!= NULL
)
1152 curl_low_speed_time
= strtol(low_speed_time
, NULL
, 10);
1154 if (curl_ssl_verify
== -1)
1155 curl_ssl_verify
= 1;
1157 curl_session_count
= 0;
1158 #ifdef USE_CURL_MULTI
1159 if (max_requests
< 1)
1160 max_requests
= DEFAULT_MAX_REQUESTS
;
1163 if (getenv("GIT_CURL_FTP_NO_EPSV"))
1164 curl_ftp_no_epsv
= 1;
1167 credential_from_url(&http_auth
, url
);
1168 if (!ssl_cert_password_required
&&
1169 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
1170 starts_with(url
, "https://"))
1171 ssl_cert_password_required
= 1;
1174 #ifndef NO_CURL_EASY_DUPHANDLE
1175 curl_default
= get_curl_handle();
1179 void http_cleanup(void)
1181 struct active_request_slot
*slot
= active_queue_head
;
1183 while (slot
!= NULL
) {
1184 struct active_request_slot
*next
= slot
->next
;
1185 if (slot
->curl
!= NULL
) {
1186 xmulti_remove_handle(slot
);
1187 curl_easy_cleanup(slot
->curl
);
1192 active_queue_head
= NULL
;
1194 #ifndef NO_CURL_EASY_DUPHANDLE
1195 curl_easy_cleanup(curl_default
);
1198 #ifdef USE_CURL_MULTI
1199 curl_multi_cleanup(curlm
);
1201 curl_global_cleanup();
1203 string_list_clear(&extra_http_headers
, 0);
1205 curl_slist_free_all(pragma_header
);
1206 pragma_header
= NULL
;
1208 curl_slist_free_all(no_pragma_header
);
1209 no_pragma_header
= NULL
;
1211 if (curl_http_proxy
) {
1212 free((void *)curl_http_proxy
);
1213 curl_http_proxy
= NULL
;
1216 if (proxy_auth
.password
) {
1217 memset(proxy_auth
.password
, 0, strlen(proxy_auth
.password
));
1218 FREE_AND_NULL(proxy_auth
.password
);
1221 free((void *)curl_proxyuserpwd
);
1222 curl_proxyuserpwd
= NULL
;
1224 free((void *)http_proxy_authmethod
);
1225 http_proxy_authmethod
= NULL
;
1227 if (cert_auth
.password
!= NULL
) {
1228 memset(cert_auth
.password
, 0, strlen(cert_auth
.password
));
1229 FREE_AND_NULL(cert_auth
.password
);
1231 ssl_cert_password_required
= 0;
1233 FREE_AND_NULL(cached_accept_language
);
1236 struct active_request_slot
*get_active_slot(void)
1238 struct active_request_slot
*slot
= active_queue_head
;
1239 struct active_request_slot
*newslot
;
1241 #ifdef USE_CURL_MULTI
1244 /* Wait for a slot to open up if the queue is full */
1245 while (active_requests
>= max_requests
) {
1246 curl_multi_perform(curlm
, &num_transfers
);
1247 if (num_transfers
< active_requests
)
1248 process_curl_messages();
1252 while (slot
!= NULL
&& slot
->in_use
)
1256 newslot
= xmalloc(sizeof(*newslot
));
1257 newslot
->curl
= NULL
;
1258 newslot
->in_use
= 0;
1259 newslot
->next
= NULL
;
1261 slot
= active_queue_head
;
1263 active_queue_head
= newslot
;
1265 while (slot
->next
!= NULL
)
1267 slot
->next
= newslot
;
1272 if (slot
->curl
== NULL
) {
1273 #ifdef NO_CURL_EASY_DUPHANDLE
1274 slot
->curl
= get_curl_handle();
1276 slot
->curl
= curl_easy_duphandle(curl_default
);
1278 curl_session_count
++;
1283 slot
->results
= NULL
;
1284 slot
->finished
= NULL
;
1285 slot
->callback_data
= NULL
;
1286 slot
->callback_func
= NULL
;
1287 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEFILE
, curl_cookie_file
);
1288 if (curl_save_cookies
)
1289 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEJAR
, curl_cookie_file
);
1290 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, pragma_header
);
1291 curl_easy_setopt(slot
->curl
, CURLOPT_ERRORBUFFER
, curl_errorstr
);
1292 curl_easy_setopt(slot
->curl
, CURLOPT_CUSTOMREQUEST
, NULL
);
1293 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, NULL
);
1294 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, NULL
);
1295 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, NULL
);
1296 curl_easy_setopt(slot
->curl
, CURLOPT_UPLOAD
, 0);
1297 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1298 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 1);
1299 curl_easy_setopt(slot
->curl
, CURLOPT_RANGE
, NULL
);
1302 * Default following to off unless "ALWAYS" is configured; this gives
1303 * callers a sane starting point, and they can tweak for individual
1304 * HTTP_FOLLOW_* cases themselves.
1306 if (http_follow_config
== HTTP_FOLLOW_ALWAYS
)
1307 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1309 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 0);
1311 #if LIBCURL_VERSION_NUM >= 0x070a08
1312 curl_easy_setopt(slot
->curl
, CURLOPT_IPRESOLVE
, git_curl_ipresolve
);
1314 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1315 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPAUTH
, http_auth_methods
);
1317 if (http_auth
.password
|| curl_empty_auth_enabled())
1318 init_curl_http_auth(slot
->curl
);
1323 int start_active_slot(struct active_request_slot
*slot
)
1325 #ifdef USE_CURL_MULTI
1326 CURLMcode curlm_result
= curl_multi_add_handle(curlm
, slot
->curl
);
1329 if (curlm_result
!= CURLM_OK
&&
1330 curlm_result
!= CURLM_CALL_MULTI_PERFORM
) {
1331 warning("curl_multi_add_handle failed: %s",
1332 curl_multi_strerror(curlm_result
));
1339 * We know there must be something to do, since we just added
1342 curl_multi_perform(curlm
, &num_transfers
);
1347 #ifdef USE_CURL_MULTI
1350 int (*fill
)(void *);
1351 struct fill_chain
*next
;
1354 static struct fill_chain
*fill_cfg
;
1356 void add_fill_function(void *data
, int (*fill
)(void *))
1358 struct fill_chain
*new_fill
= xmalloc(sizeof(*new_fill
));
1359 struct fill_chain
**linkp
= &fill_cfg
;
1360 new_fill
->data
= data
;
1361 new_fill
->fill
= fill
;
1362 new_fill
->next
= NULL
;
1364 linkp
= &(*linkp
)->next
;
1368 void fill_active_slots(void)
1370 struct active_request_slot
*slot
= active_queue_head
;
1372 while (active_requests
< max_requests
) {
1373 struct fill_chain
*fill
;
1374 for (fill
= fill_cfg
; fill
; fill
= fill
->next
)
1375 if (fill
->fill(fill
->data
))
1382 while (slot
!= NULL
) {
1383 if (!slot
->in_use
&& slot
->curl
!= NULL
1384 && curl_session_count
> min_curl_sessions
) {
1385 curl_easy_cleanup(slot
->curl
);
1387 curl_session_count
--;
1393 void step_active_slots(void)
1396 CURLMcode curlm_result
;
1399 curlm_result
= curl_multi_perform(curlm
, &num_transfers
);
1400 } while (curlm_result
== CURLM_CALL_MULTI_PERFORM
);
1401 if (num_transfers
< active_requests
) {
1402 process_curl_messages();
1403 fill_active_slots();
1408 void run_active_slot(struct active_request_slot
*slot
)
1410 #ifdef USE_CURL_MULTI
1415 struct timeval select_timeout
;
1418 slot
->finished
= &finished
;
1420 step_active_slots();
1423 #if LIBCURL_VERSION_NUM >= 0x070f04
1425 curl_multi_timeout(curlm
, &curl_timeout
);
1426 if (curl_timeout
== 0) {
1428 } else if (curl_timeout
== -1) {
1429 select_timeout
.tv_sec
= 0;
1430 select_timeout
.tv_usec
= 50000;
1432 select_timeout
.tv_sec
= curl_timeout
/ 1000;
1433 select_timeout
.tv_usec
= (curl_timeout
% 1000) * 1000;
1436 select_timeout
.tv_sec
= 0;
1437 select_timeout
.tv_usec
= 50000;
1444 curl_multi_fdset(curlm
, &readfds
, &writefds
, &excfds
, &max_fd
);
1447 * It can happen that curl_multi_timeout returns a pathologically
1448 * long timeout when curl_multi_fdset returns no file descriptors
1449 * to read. See commit message for more details.
1452 (select_timeout
.tv_sec
> 0 ||
1453 select_timeout
.tv_usec
> 50000)) {
1454 select_timeout
.tv_sec
= 0;
1455 select_timeout
.tv_usec
= 50000;
1458 select(max_fd
+1, &readfds
, &writefds
, &excfds
, &select_timeout
);
1462 while (slot
->in_use
) {
1463 slot
->curl_result
= curl_easy_perform(slot
->curl
);
1464 finish_active_slot(slot
);
1469 static void release_active_slot(struct active_request_slot
*slot
)
1471 closedown_active_slot(slot
);
1473 xmulti_remove_handle(slot
);
1474 if (curl_session_count
> min_curl_sessions
) {
1475 curl_easy_cleanup(slot
->curl
);
1477 curl_session_count
--;
1480 #ifdef USE_CURL_MULTI
1481 fill_active_slots();
1485 void finish_all_active_slots(void)
1487 struct active_request_slot
*slot
= active_queue_head
;
1489 while (slot
!= NULL
)
1491 run_active_slot(slot
);
1492 slot
= active_queue_head
;
1498 /* Helpers for modifying and creating URLs */
1499 static inline int needs_quote(int ch
)
1501 if (((ch
>= 'A') && (ch
<= 'Z'))
1502 || ((ch
>= 'a') && (ch
<= 'z'))
1503 || ((ch
>= '0') && (ch
<= '9'))
1511 static char *quote_ref_url(const char *base
, const char *ref
)
1513 struct strbuf buf
= STRBUF_INIT
;
1517 end_url_with_slash(&buf
, base
);
1519 for (cp
= ref
; (ch
= *cp
) != 0; cp
++)
1520 if (needs_quote(ch
))
1521 strbuf_addf(&buf
, "%%%02x", ch
);
1523 strbuf_addch(&buf
, *cp
);
1525 return strbuf_detach(&buf
, NULL
);
1528 void append_remote_object_url(struct strbuf
*buf
, const char *url
,
1530 int only_two_digit_prefix
)
1532 end_url_with_slash(buf
, url
);
1534 strbuf_addf(buf
, "objects/%.*s/", 2, hex
);
1535 if (!only_two_digit_prefix
)
1536 strbuf_addstr(buf
, hex
+ 2);
1539 char *get_remote_object_url(const char *url
, const char *hex
,
1540 int only_two_digit_prefix
)
1542 struct strbuf buf
= STRBUF_INIT
;
1543 append_remote_object_url(&buf
, url
, hex
, only_two_digit_prefix
);
1544 return strbuf_detach(&buf
, NULL
);
1547 void normalize_curl_result(CURLcode
*result
, long http_code
,
1548 char *errorstr
, size_t errorlen
)
1551 * If we see a failing http code with CURLE_OK, we have turned off
1552 * FAILONERROR (to keep the server's custom error response), and should
1553 * translate the code into failure here.
1555 * Likewise, if we see a redirect (30x code), that means we turned off
1556 * redirect-following, and we should treat the result as an error.
1558 if (*result
== CURLE_OK
&& http_code
>= 300) {
1559 *result
= CURLE_HTTP_RETURNED_ERROR
;
1561 * Normally curl will already have put the "reason phrase"
1562 * from the server into curl_errorstr; unfortunately without
1563 * FAILONERROR it is lost, so we can give only the numeric
1566 xsnprintf(errorstr
, errorlen
,
1567 "The requested URL returned error: %ld",
1572 static int handle_curl_result(struct slot_results
*results
)
1574 normalize_curl_result(&results
->curl_result
, results
->http_code
,
1575 curl_errorstr
, sizeof(curl_errorstr
));
1577 if (results
->curl_result
== CURLE_OK
) {
1578 credential_approve(&http_auth
);
1579 if (proxy_auth
.password
)
1580 credential_approve(&proxy_auth
);
1582 } else if (missing_target(results
))
1583 return HTTP_MISSING_TARGET
;
1584 else if (results
->http_code
== 401) {
1585 if (http_auth
.username
&& http_auth
.password
) {
1586 credential_reject(&http_auth
);
1589 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1590 http_auth_methods
&= ~CURLAUTH_GSSNEGOTIATE
;
1591 if (results
->auth_avail
) {
1592 http_auth_methods
&= results
->auth_avail
;
1593 http_auth_methods_restricted
= 1;
1599 if (results
->http_connectcode
== 407)
1600 credential_reject(&proxy_auth
);
1601 #if LIBCURL_VERSION_NUM >= 0x070c00
1602 if (!curl_errorstr
[0])
1603 strlcpy(curl_errorstr
,
1604 curl_easy_strerror(results
->curl_result
),
1605 sizeof(curl_errorstr
));
1611 int run_one_slot(struct active_request_slot
*slot
,
1612 struct slot_results
*results
)
1614 slot
->results
= results
;
1615 if (!start_active_slot(slot
)) {
1616 xsnprintf(curl_errorstr
, sizeof(curl_errorstr
),
1617 "failed to start HTTP request");
1618 return HTTP_START_FAILED
;
1621 run_active_slot(slot
);
1622 return handle_curl_result(results
);
1625 struct curl_slist
*http_copy_default_headers(void)
1627 struct curl_slist
*headers
= NULL
;
1628 const struct string_list_item
*item
;
1630 for_each_string_list_item(item
, &extra_http_headers
)
1631 headers
= curl_slist_append(headers
, item
->string
);
1636 static CURLcode
curlinfo_strbuf(CURL
*curl
, CURLINFO info
, struct strbuf
*buf
)
1642 ret
= curl_easy_getinfo(curl
, info
, &ptr
);
1644 strbuf_addstr(buf
, ptr
);
1649 * Check for and extract a content-type parameter. "raw"
1650 * should be positioned at the start of the potential
1651 * parameter, with any whitespace already removed.
1653 * "name" is the name of the parameter. The value is appended
1656 static int extract_param(const char *raw
, const char *name
,
1659 size_t len
= strlen(name
);
1661 if (strncasecmp(raw
, name
, len
))
1669 while (*raw
&& !isspace(*raw
) && *raw
!= ';')
1670 strbuf_addch(out
, *raw
++);
1675 * Extract a normalized version of the content type, with any
1676 * spaces suppressed, all letters lowercased, and no trailing ";"
1679 * Note that we will silently remove even invalid whitespace. For
1680 * example, "text / plain" is specifically forbidden by RFC 2616,
1681 * but "text/plain" is the only reasonable output, and this keeps
1684 * If the "charset" argument is not NULL, store the value of any
1685 * charset parameter there.
1688 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
1689 * "text / plain" -> "text/plain"
1691 static void extract_content_type(struct strbuf
*raw
, struct strbuf
*type
,
1692 struct strbuf
*charset
)
1697 strbuf_grow(type
, raw
->len
);
1698 for (p
= raw
->buf
; *p
; p
++) {
1705 strbuf_addch(type
, tolower(*p
));
1711 strbuf_reset(charset
);
1713 while (isspace(*p
) || *p
== ';')
1715 if (!extract_param(p
, "charset", charset
))
1717 while (*p
&& !isspace(*p
))
1721 if (!charset
->len
&& starts_with(type
->buf
, "text/"))
1722 strbuf_addstr(charset
, "ISO-8859-1");
1725 static void write_accept_language(struct strbuf
*buf
)
1728 * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than
1729 * that, q-value will be smaller than 0.001, the minimum q-value the
1730 * HTTP specification allows. See
1731 * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value.
1733 const int MAX_DECIMAL_PLACES
= 3;
1734 const int MAX_LANGUAGE_TAGS
= 1000;
1735 const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE
= 4000;
1736 char **language_tags
= NULL
;
1738 const char *s
= get_preferred_languages();
1740 struct strbuf tag
= STRBUF_INIT
;
1742 /* Don't add Accept-Language header if no language is preferred. */
1747 * Split the colon-separated string of preferred languages into
1748 * language_tags array.
1751 /* collect language tag */
1752 for (; *s
&& (isalnum(*s
) || *s
== '_'); s
++)
1753 strbuf_addch(&tag
, *s
== '_' ? '-' : *s
);
1755 /* skip .codeset, @modifier and any other unnecessary parts */
1756 while (*s
&& *s
!= ':')
1761 REALLOC_ARRAY(language_tags
, num_langs
);
1762 language_tags
[num_langs
- 1] = strbuf_detach(&tag
, NULL
);
1763 if (num_langs
>= MAX_LANGUAGE_TAGS
- 1) /* -1 for '*' */
1768 /* write Accept-Language header into buf */
1770 int last_buf_len
= 0;
1776 REALLOC_ARRAY(language_tags
, num_langs
+ 1);
1777 language_tags
[num_langs
++] = "*"; /* it's OK; this won't be freed */
1779 /* compute decimal_places */
1780 for (max_q
= 1, decimal_places
= 0;
1781 max_q
< num_langs
&& decimal_places
<= MAX_DECIMAL_PLACES
;
1782 decimal_places
++, max_q
*= 10)
1785 xsnprintf(q_format
, sizeof(q_format
), ";q=0.%%0%dd", decimal_places
);
1787 strbuf_addstr(buf
, "Accept-Language: ");
1789 for (i
= 0; i
< num_langs
; i
++) {
1791 strbuf_addstr(buf
, ", ");
1793 strbuf_addstr(buf
, language_tags
[i
]);
1796 strbuf_addf(buf
, q_format
, max_q
- i
);
1798 if (buf
->len
> MAX_ACCEPT_LANGUAGE_HEADER_SIZE
) {
1799 strbuf_remove(buf
, last_buf_len
, buf
->len
- last_buf_len
);
1803 last_buf_len
= buf
->len
;
1807 /* free language tags -- last one is a static '*' */
1808 for (i
= 0; i
< num_langs
- 1; i
++)
1809 free(language_tags
[i
]);
1810 free(language_tags
);
1814 * Get an Accept-Language header which indicates user's preferred languages.
1818 * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1"
1819 * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1"
1820 * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1"
1821 * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1"
1822 * LANGUAGE= LANG=C -> ""
1824 static const char *get_accept_language(void)
1826 if (!cached_accept_language
) {
1827 struct strbuf buf
= STRBUF_INIT
;
1828 write_accept_language(&buf
);
1830 cached_accept_language
= strbuf_detach(&buf
, NULL
);
1833 return cached_accept_language
;
1836 static void http_opt_request_remainder(CURL
*curl
, off_t pos
)
1839 xsnprintf(buf
, sizeof(buf
), "%"PRIuMAX
"-", (uintmax_t)pos
);
1840 curl_easy_setopt(curl
, CURLOPT_RANGE
, buf
);
1843 /* http_request() targets */
1844 #define HTTP_REQUEST_STRBUF 0
1845 #define HTTP_REQUEST_FILE 1
1847 static int http_request(const char *url
,
1848 void *result
, int target
,
1849 const struct http_get_options
*options
)
1851 struct active_request_slot
*slot
;
1852 struct slot_results results
;
1853 struct curl_slist
*headers
= http_copy_default_headers();
1854 struct strbuf buf
= STRBUF_INIT
;
1855 const char *accept_language
;
1858 slot
= get_active_slot();
1859 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1861 if (result
== NULL
) {
1862 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 1);
1864 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
1865 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, result
);
1867 if (target
== HTTP_REQUEST_FILE
) {
1868 off_t posn
= ftello(result
);
1869 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1872 http_opt_request_remainder(slot
->curl
, posn
);
1874 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1878 accept_language
= get_accept_language();
1880 if (accept_language
)
1881 headers
= curl_slist_append(headers
, accept_language
);
1883 strbuf_addstr(&buf
, "Pragma:");
1884 if (options
&& options
->no_cache
)
1885 strbuf_addstr(&buf
, " no-cache");
1886 if (options
&& options
->initial_request
&&
1887 http_follow_config
== HTTP_FOLLOW_INITIAL
)
1888 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1890 headers
= curl_slist_append(headers
, buf
.buf
);
1892 /* Add additional headers here */
1893 if (options
&& options
->extra_headers
) {
1894 const struct string_list_item
*item
;
1895 for_each_string_list_item(item
, options
->extra_headers
) {
1896 headers
= curl_slist_append(headers
, item
->string
);
1900 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, url
);
1901 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
1902 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "");
1903 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 0);
1905 ret
= run_one_slot(slot
, &results
);
1907 if (options
&& options
->content_type
) {
1908 struct strbuf raw
= STRBUF_INIT
;
1909 curlinfo_strbuf(slot
->curl
, CURLINFO_CONTENT_TYPE
, &raw
);
1910 extract_content_type(&raw
, options
->content_type
,
1912 strbuf_release(&raw
);
1915 if (options
&& options
->effective_url
)
1916 curlinfo_strbuf(slot
->curl
, CURLINFO_EFFECTIVE_URL
,
1917 options
->effective_url
);
1919 curl_slist_free_all(headers
);
1920 strbuf_release(&buf
);
1926 * Update the "base" url to a more appropriate value, as deduced by
1927 * redirects seen when requesting a URL starting with "url".
1929 * The "asked" parameter is a URL that we asked curl to access, and must begin
1932 * The "got" parameter is the URL that curl reported to us as where we ended
1935 * Returns 1 if we updated the base url, 0 otherwise.
1937 * Our basic strategy is to compare "base" and "asked" to find the bits
1938 * specific to our request. We then strip those bits off of "got" to yield the
1939 * new base. So for example, if our base is "http://example.com/foo.git",
1940 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1941 * with "https://other.example.com/foo.git/info/refs". We would want the
1942 * new URL to become "https://other.example.com/foo.git".
1944 * Note that this assumes a sane redirect scheme. It's entirely possible
1945 * in the example above to end up at a URL that does not even end in
1946 * "info/refs". In such a case we die. There's not much we can do, such a
1947 * scheme is unlikely to represent a real git repository, and failing to
1948 * rewrite the base opens options for malicious redirects to do funny things.
1950 static int update_url_from_redirect(struct strbuf
*base
,
1952 const struct strbuf
*got
)
1957 if (!strcmp(asked
, got
->buf
))
1960 if (!skip_prefix(asked
, base
->buf
, &tail
))
1961 BUG("update_url_from_redirect: %s is not a superset of %s",
1965 if (!strip_suffix_mem(got
->buf
, &new_len
, tail
))
1966 die(_("unable to update url base from redirection:\n"
1972 strbuf_add(base
, got
->buf
, new_len
);
1977 static int http_request_reauth(const char *url
,
1978 void *result
, int target
,
1979 struct http_get_options
*options
)
1981 int ret
= http_request(url
, result
, target
, options
);
1983 if (ret
!= HTTP_OK
&& ret
!= HTTP_REAUTH
)
1986 if (options
&& options
->effective_url
&& options
->base_url
) {
1987 if (update_url_from_redirect(options
->base_url
,
1988 url
, options
->effective_url
)) {
1989 credential_from_url(&http_auth
, options
->base_url
->buf
);
1990 url
= options
->effective_url
->buf
;
1994 if (ret
!= HTTP_REAUTH
)
1998 * The previous request may have put cruft into our output stream; we
1999 * should clear it out before making our next request.
2002 case HTTP_REQUEST_STRBUF
:
2003 strbuf_reset(result
);
2005 case HTTP_REQUEST_FILE
:
2006 if (fflush(result
)) {
2007 error_errno("unable to flush a file");
2008 return HTTP_START_FAILED
;
2011 if (ftruncate(fileno(result
), 0) < 0) {
2012 error_errno("unable to truncate a file");
2013 return HTTP_START_FAILED
;
2017 BUG("Unknown http_request target");
2020 credential_fill(&http_auth
);
2022 return http_request(url
, result
, target
, options
);
2025 int http_get_strbuf(const char *url
,
2026 struct strbuf
*result
,
2027 struct http_get_options
*options
)
2029 return http_request_reauth(url
, result
, HTTP_REQUEST_STRBUF
, options
);
2033 * Downloads a URL and stores the result in the given file.
2035 * If a previous interrupted download is detected (i.e. a previous temporary
2036 * file is still around) the download is resumed.
2038 static int http_get_file(const char *url
, const char *filename
,
2039 struct http_get_options
*options
)
2042 struct strbuf tmpfile
= STRBUF_INIT
;
2045 strbuf_addf(&tmpfile
, "%s.temp", filename
);
2046 result
= fopen(tmpfile
.buf
, "a");
2048 error("Unable to open local file %s", tmpfile
.buf
);
2053 ret
= http_request_reauth(url
, result
, HTTP_REQUEST_FILE
, options
);
2056 if (ret
== HTTP_OK
&& finalize_object_file(tmpfile
.buf
, filename
))
2059 strbuf_release(&tmpfile
);
2063 int http_fetch_ref(const char *base
, struct ref
*ref
)
2065 struct http_get_options options
= {0};
2067 struct strbuf buffer
= STRBUF_INIT
;
2070 options
.no_cache
= 1;
2072 url
= quote_ref_url(base
, ref
->name
);
2073 if (http_get_strbuf(url
, &buffer
, &options
) == HTTP_OK
) {
2074 strbuf_rtrim(&buffer
);
2075 if (buffer
.len
== the_hash_algo
->hexsz
)
2076 ret
= get_oid_hex(buffer
.buf
, &ref
->old_oid
);
2077 else if (starts_with(buffer
.buf
, "ref: ")) {
2078 ref
->symref
= xstrdup(buffer
.buf
+ 5);
2083 strbuf_release(&buffer
);
2088 /* Helpers for fetching packs */
2089 static char *fetch_pack_index(unsigned char *hash
, const char *base_url
)
2092 struct strbuf buf
= STRBUF_INIT
;
2094 if (http_is_verbose
)
2095 fprintf(stderr
, "Getting index for pack %s\n", hash_to_hex(hash
));
2097 end_url_with_slash(&buf
, base_url
);
2098 strbuf_addf(&buf
, "objects/pack/pack-%s.idx", hash_to_hex(hash
));
2099 url
= strbuf_detach(&buf
, NULL
);
2101 strbuf_addf(&buf
, "%s.temp", sha1_pack_index_name(hash
));
2102 tmp
= strbuf_detach(&buf
, NULL
);
2104 if (http_get_file(url
, tmp
, NULL
) != HTTP_OK
) {
2105 error("Unable to get pack index %s", url
);
2113 static int fetch_and_setup_pack_index(struct packed_git
**packs_head
,
2114 unsigned char *sha1
, const char *base_url
)
2116 struct packed_git
*new_pack
;
2117 char *tmp_idx
= NULL
;
2120 if (has_pack_index(sha1
)) {
2121 new_pack
= parse_pack_index(sha1
, sha1_pack_index_name(sha1
));
2123 return -1; /* parse_pack_index() already issued error message */
2127 tmp_idx
= fetch_pack_index(sha1
, base_url
);
2131 new_pack
= parse_pack_index(sha1
, tmp_idx
);
2136 return -1; /* parse_pack_index() already issued error message */
2139 ret
= verify_pack_index(new_pack
);
2141 close_pack_index(new_pack
);
2142 ret
= finalize_object_file(tmp_idx
, sha1_pack_index_name(sha1
));
2149 new_pack
->next
= *packs_head
;
2150 *packs_head
= new_pack
;
2154 int http_get_info_packs(const char *base_url
, struct packed_git
**packs_head
)
2156 struct http_get_options options
= {0};
2160 struct strbuf buf
= STRBUF_INIT
;
2161 struct object_id oid
;
2163 end_url_with_slash(&buf
, base_url
);
2164 strbuf_addstr(&buf
, "objects/info/packs");
2165 url
= strbuf_detach(&buf
, NULL
);
2167 options
.no_cache
= 1;
2168 ret
= http_get_strbuf(url
, &buf
, &options
);
2174 if (skip_prefix(data
, "P pack-", &data
) &&
2175 !parse_oid_hex(data
, &oid
, &data
) &&
2176 skip_prefix(data
, ".pack", &data
) &&
2177 (*data
== '\n' || *data
== '\0')) {
2178 fetch_and_setup_pack_index(packs_head
, oid
.hash
, base_url
);
2180 data
= strchrnul(data
, '\n');
2183 data
++; /* skip past newline */
2191 void release_http_pack_request(struct http_pack_request
*preq
)
2193 if (preq
->packfile
!= NULL
) {
2194 fclose(preq
->packfile
);
2195 preq
->packfile
= NULL
;
2198 strbuf_release(&preq
->tmpfile
);
2203 int finish_http_pack_request(struct http_pack_request
*preq
)
2205 struct packed_git
**lst
;
2206 struct packed_git
*p
= preq
->target
;
2209 struct child_process ip
= CHILD_PROCESS_INIT
;
2211 close_pack_index(p
);
2213 fclose(preq
->packfile
);
2214 preq
->packfile
= NULL
;
2218 lst
= &((*lst
)->next
);
2219 *lst
= (*lst
)->next
;
2221 if (!strip_suffix(preq
->tmpfile
.buf
, ".pack.temp", &len
))
2222 BUG("pack tmpfile does not end in .pack.temp?");
2223 tmp_idx
= xstrfmt("%.*s.idx.temp", (int)len
, preq
->tmpfile
.buf
);
2225 argv_array_push(&ip
.args
, "index-pack");
2226 argv_array_pushl(&ip
.args
, "-o", tmp_idx
, NULL
);
2227 argv_array_push(&ip
.args
, preq
->tmpfile
.buf
);
2232 if (run_command(&ip
)) {
2233 unlink(preq
->tmpfile
.buf
);
2239 unlink(sha1_pack_index_name(p
->hash
));
2241 if (finalize_object_file(preq
->tmpfile
.buf
, sha1_pack_name(p
->hash
))
2242 || finalize_object_file(tmp_idx
, sha1_pack_index_name(p
->hash
))) {
2247 install_packed_git(the_repository
, p
);
2252 struct http_pack_request
*new_http_pack_request(
2253 struct packed_git
*target
, const char *base_url
)
2255 off_t prev_posn
= 0;
2256 struct strbuf buf
= STRBUF_INIT
;
2257 struct http_pack_request
*preq
;
2259 preq
= xcalloc(1, sizeof(*preq
));
2260 strbuf_init(&preq
->tmpfile
, 0);
2261 preq
->target
= target
;
2263 end_url_with_slash(&buf
, base_url
);
2264 strbuf_addf(&buf
, "objects/pack/pack-%s.pack",
2265 hash_to_hex(target
->hash
));
2266 preq
->url
= strbuf_detach(&buf
, NULL
);
2268 strbuf_addf(&preq
->tmpfile
, "%s.temp", sha1_pack_name(target
->hash
));
2269 preq
->packfile
= fopen(preq
->tmpfile
.buf
, "a");
2270 if (!preq
->packfile
) {
2271 error("Unable to open local file %s for pack",
2276 preq
->slot
= get_active_slot();
2277 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_FILE
, preq
->packfile
);
2278 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite
);
2279 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_URL
, preq
->url
);
2280 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
2284 * If there is data present from a previous transfer attempt,
2285 * resume where it left off
2287 prev_posn
= ftello(preq
->packfile
);
2289 if (http_is_verbose
)
2291 "Resuming fetch of pack %s at byte %"PRIuMAX
"\n",
2292 hash_to_hex(target
->hash
),
2293 (uintmax_t)prev_posn
);
2294 http_opt_request_remainder(preq
->slot
->curl
, prev_posn
);
2300 strbuf_release(&preq
->tmpfile
);
2306 /* Helpers for fetching objects (loose) */
2307 static size_t fwrite_sha1_file(char *ptr
, size_t eltsize
, size_t nmemb
,
2310 unsigned char expn
[4096];
2311 size_t size
= eltsize
* nmemb
;
2313 struct http_object_request
*freq
= data
;
2314 struct active_request_slot
*slot
= freq
->slot
;
2317 CURLcode c
= curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
,
2320 BUG("curl_easy_getinfo for HTTP code failed: %s",
2321 curl_easy_strerror(c
));
2322 if (slot
->http_code
>= 300)
2327 ssize_t retval
= xwrite(freq
->localfile
,
2328 (char *) ptr
+ posn
, size
- posn
);
2330 return posn
/ eltsize
;
2332 } while (posn
< size
);
2334 freq
->stream
.avail_in
= size
;
2335 freq
->stream
.next_in
= (void *)ptr
;
2337 freq
->stream
.next_out
= expn
;
2338 freq
->stream
.avail_out
= sizeof(expn
);
2339 freq
->zret
= git_inflate(&freq
->stream
, Z_SYNC_FLUSH
);
2340 the_hash_algo
->update_fn(&freq
->c
, expn
,
2341 sizeof(expn
) - freq
->stream
.avail_out
);
2342 } while (freq
->stream
.avail_in
&& freq
->zret
== Z_OK
);
2346 struct http_object_request
*new_http_object_request(const char *base_url
,
2347 const struct object_id
*oid
)
2349 char *hex
= oid_to_hex(oid
);
2350 struct strbuf filename
= STRBUF_INIT
;
2351 struct strbuf prevfile
= STRBUF_INIT
;
2353 char prev_buf
[PREV_BUF_SIZE
];
2354 ssize_t prev_read
= 0;
2355 off_t prev_posn
= 0;
2356 struct http_object_request
*freq
;
2358 freq
= xcalloc(1, sizeof(*freq
));
2359 strbuf_init(&freq
->tmpfile
, 0);
2360 oidcpy(&freq
->oid
, oid
);
2361 freq
->localfile
= -1;
2363 loose_object_path(the_repository
, &filename
, oid
);
2364 strbuf_addf(&freq
->tmpfile
, "%s.temp", filename
.buf
);
2366 strbuf_addf(&prevfile
, "%s.prev", filename
.buf
);
2367 unlink_or_warn(prevfile
.buf
);
2368 rename(freq
->tmpfile
.buf
, prevfile
.buf
);
2369 unlink_or_warn(freq
->tmpfile
.buf
);
2370 strbuf_release(&filename
);
2372 if (freq
->localfile
!= -1)
2373 error("fd leakage in start: %d", freq
->localfile
);
2374 freq
->localfile
= open(freq
->tmpfile
.buf
,
2375 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2377 * This could have failed due to the "lazy directory creation";
2378 * try to mkdir the last path component.
2380 if (freq
->localfile
< 0 && errno
== ENOENT
) {
2381 char *dir
= strrchr(freq
->tmpfile
.buf
, '/');
2384 mkdir(freq
->tmpfile
.buf
, 0777);
2387 freq
->localfile
= open(freq
->tmpfile
.buf
,
2388 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2391 if (freq
->localfile
< 0) {
2392 error_errno("Couldn't create temporary file %s",
2397 git_inflate_init(&freq
->stream
);
2399 the_hash_algo
->init_fn(&freq
->c
);
2401 freq
->url
= get_remote_object_url(base_url
, hex
, 0);
2404 * If a previous temp file is present, process what was already
2407 prevlocal
= open(prevfile
.buf
, O_RDONLY
);
2408 if (prevlocal
!= -1) {
2410 prev_read
= xread(prevlocal
, prev_buf
, PREV_BUF_SIZE
);
2412 if (fwrite_sha1_file(prev_buf
,
2415 freq
) == prev_read
) {
2416 prev_posn
+= prev_read
;
2421 } while (prev_read
> 0);
2424 unlink_or_warn(prevfile
.buf
);
2425 strbuf_release(&prevfile
);
2428 * Reset inflate/SHA1 if there was an error reading the previous temp
2429 * file; also rewind to the beginning of the local file.
2431 if (prev_read
== -1) {
2432 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
2433 git_inflate_init(&freq
->stream
);
2434 the_hash_algo
->init_fn(&freq
->c
);
2437 lseek(freq
->localfile
, 0, SEEK_SET
);
2438 if (ftruncate(freq
->localfile
, 0) < 0) {
2439 error_errno("Couldn't truncate temporary file %s",
2446 freq
->slot
= get_active_slot();
2448 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FILE
, freq
);
2449 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FAILONERROR
, 0);
2450 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_sha1_file
);
2451 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_ERRORBUFFER
, freq
->errorstr
);
2452 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_URL
, freq
->url
);
2453 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_HTTPHEADER
, no_pragma_header
);
2456 * If we have successfully processed data from a previous fetch
2457 * attempt, only fetch the data we don't already have.
2460 if (http_is_verbose
)
2462 "Resuming fetch of object %s at byte %"PRIuMAX
"\n",
2463 hex
, (uintmax_t)prev_posn
);
2464 http_opt_request_remainder(freq
->slot
->curl
, prev_posn
);
2470 strbuf_release(&prevfile
);
2476 void process_http_object_request(struct http_object_request
*freq
)
2478 if (freq
->slot
== NULL
)
2480 freq
->curl_result
= freq
->slot
->curl_result
;
2481 freq
->http_code
= freq
->slot
->http_code
;
2485 int finish_http_object_request(struct http_object_request
*freq
)
2488 struct strbuf filename
= STRBUF_INIT
;
2490 close(freq
->localfile
);
2491 freq
->localfile
= -1;
2493 process_http_object_request(freq
);
2495 if (freq
->http_code
== 416) {
2496 warning("requested range invalid; we may already have all the data.");
2497 } else if (freq
->curl_result
!= CURLE_OK
) {
2498 if (stat(freq
->tmpfile
.buf
, &st
) == 0)
2499 if (st
.st_size
== 0)
2500 unlink_or_warn(freq
->tmpfile
.buf
);
2504 git_inflate_end(&freq
->stream
);
2505 the_hash_algo
->final_fn(freq
->real_oid
.hash
, &freq
->c
);
2506 if (freq
->zret
!= Z_STREAM_END
) {
2507 unlink_or_warn(freq
->tmpfile
.buf
);
2510 if (!oideq(&freq
->oid
, &freq
->real_oid
)) {
2511 unlink_or_warn(freq
->tmpfile
.buf
);
2514 loose_object_path(the_repository
, &filename
, &freq
->oid
);
2515 freq
->rename
= finalize_object_file(freq
->tmpfile
.buf
, filename
.buf
);
2516 strbuf_release(&filename
);
2518 return freq
->rename
;
2521 void abort_http_object_request(struct http_object_request
*freq
)
2523 unlink_or_warn(freq
->tmpfile
.buf
);
2525 release_http_object_request(freq
);
2528 void release_http_object_request(struct http_object_request
*freq
)
2530 if (freq
->localfile
!= -1) {
2531 close(freq
->localfile
);
2532 freq
->localfile
= -1;
2534 FREE_AND_NULL(freq
->url
);
2535 if (freq
->slot
!= NULL
) {
2536 freq
->slot
->callback_func
= NULL
;
2537 freq
->slot
->callback_data
= NULL
;
2538 release_active_slot(freq
->slot
);
2541 strbuf_release(&freq
->tmpfile
);