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 curl_slist
*extra_http_headers
;
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 curl_slist_free_all(extra_http_headers
);
418 extra_http_headers
= NULL
;
421 curl_slist_append(extra_http_headers
, value
);
426 if (!strcmp("http.followredirects", var
)) {
427 if (value
&& !strcmp(value
, "initial"))
428 http_follow_config
= HTTP_FOLLOW_INITIAL
;
429 else if (git_config_bool(var
, value
))
430 http_follow_config
= HTTP_FOLLOW_ALWAYS
;
432 http_follow_config
= HTTP_FOLLOW_NONE
;
436 /* Fall back on the default ones */
437 return git_default_config(var
, value
, cb
);
440 static int curl_empty_auth_enabled(void)
442 if (curl_empty_auth
>= 0)
443 return curl_empty_auth
;
445 #ifndef LIBCURL_CAN_HANDLE_AUTH_ANY
447 * Our libcurl is too old to do AUTH_ANY in the first place;
448 * just default to turning the feature off.
452 * In the automatic case, kick in the empty-auth
453 * hack as long as we would potentially try some
454 * method more exotic than "Basic" or "Digest".
456 * But only do this when this is our second or
457 * subsequent request, as by then we know what
458 * methods are available.
460 if (http_auth_methods_restricted
&&
461 (http_auth_methods
& ~empty_auth_useless
))
467 static void init_curl_http_auth(CURL
*result
)
469 if (!http_auth
.username
|| !*http_auth
.username
) {
470 if (curl_empty_auth_enabled())
471 curl_easy_setopt(result
, CURLOPT_USERPWD
, ":");
475 credential_fill(&http_auth
);
477 #if LIBCURL_VERSION_NUM >= 0x071301
478 curl_easy_setopt(result
, CURLOPT_USERNAME
, http_auth
.username
);
479 curl_easy_setopt(result
, CURLOPT_PASSWORD
, http_auth
.password
);
482 static struct strbuf up
= STRBUF_INIT
;
484 * Note that we assume we only ever have a single set of
485 * credentials in a given program run, so we do not have
486 * to worry about updating this buffer, only setting its
490 strbuf_addf(&up
, "%s:%s",
491 http_auth
.username
, http_auth
.password
);
492 curl_easy_setopt(result
, CURLOPT_USERPWD
, up
.buf
);
497 /* *var must be free-able */
498 static void var_override(const char **var
, char *value
)
502 *var
= xstrdup(value
);
506 static void set_proxyauth_name_password(CURL
*result
)
508 #if LIBCURL_VERSION_NUM >= 0x071301
509 curl_easy_setopt(result
, CURLOPT_PROXYUSERNAME
,
510 proxy_auth
.username
);
511 curl_easy_setopt(result
, CURLOPT_PROXYPASSWORD
,
512 proxy_auth
.password
);
514 struct strbuf s
= STRBUF_INIT
;
516 strbuf_addstr_urlencode(&s
, proxy_auth
.username
,
517 is_rfc3986_unreserved
);
518 strbuf_addch(&s
, ':');
519 strbuf_addstr_urlencode(&s
, proxy_auth
.password
,
520 is_rfc3986_unreserved
);
521 curl_proxyuserpwd
= strbuf_detach(&s
, NULL
);
522 curl_easy_setopt(result
, CURLOPT_PROXYUSERPWD
, curl_proxyuserpwd
);
526 static void init_curl_proxy_auth(CURL
*result
)
528 if (proxy_auth
.username
) {
529 if (!proxy_auth
.password
)
530 credential_fill(&proxy_auth
);
531 set_proxyauth_name_password(result
);
534 var_override(&http_proxy_authmethod
, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
536 #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
537 if (http_proxy_authmethod
) {
539 for (i
= 0; i
< ARRAY_SIZE(proxy_authmethods
); i
++) {
540 if (!strcmp(http_proxy_authmethod
, proxy_authmethods
[i
].name
)) {
541 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
,
542 proxy_authmethods
[i
].curlauth_param
);
546 if (i
== ARRAY_SIZE(proxy_authmethods
)) {
547 warning("unsupported proxy authentication method %s: using anyauth",
548 http_proxy_authmethod
);
549 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
553 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
557 static int has_cert_password(void)
559 if (ssl_cert
== NULL
|| ssl_cert_password_required
!= 1)
561 if (!cert_auth
.password
) {
562 cert_auth
.protocol
= xstrdup("cert");
563 cert_auth
.username
= xstrdup("");
564 cert_auth
.path
= xstrdup(ssl_cert
);
565 credential_fill(&cert_auth
);
570 #if LIBCURL_VERSION_NUM >= 0x071900
571 static void set_curl_keepalive(CURL
*c
)
573 curl_easy_setopt(c
, CURLOPT_TCP_KEEPALIVE
, 1);
576 #elif LIBCURL_VERSION_NUM >= 0x071000
577 static int sockopt_callback(void *client
, curl_socket_t fd
, curlsocktype type
)
581 socklen_t len
= (socklen_t
)sizeof(ka
);
583 if (type
!= CURLSOCKTYPE_IPCXN
)
586 rc
= setsockopt(fd
, SOL_SOCKET
, SO_KEEPALIVE
, (void *)&ka
, len
);
588 warning_errno("unable to set SO_KEEPALIVE on socket");
590 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
593 static void set_curl_keepalive(CURL
*c
)
595 curl_easy_setopt(c
, CURLOPT_SOCKOPTFUNCTION
, sockopt_callback
);
599 static void set_curl_keepalive(CURL
*c
)
601 /* not supported on older curl versions */
605 static void redact_sensitive_header(struct strbuf
*header
)
607 const char *sensitive_header
;
609 if (skip_prefix(header
->buf
, "Authorization:", &sensitive_header
) ||
610 skip_prefix(header
->buf
, "Proxy-Authorization:", &sensitive_header
)) {
611 /* The first token is the type, which is OK to log */
612 while (isspace(*sensitive_header
))
614 while (*sensitive_header
&& !isspace(*sensitive_header
))
616 /* Everything else is opaque and possibly sensitive */
617 strbuf_setlen(header
, sensitive_header
- header
->buf
);
618 strbuf_addstr(header
, " <redacted>");
619 } else if (cookies_to_redact
.nr
&&
620 skip_prefix(header
->buf
, "Cookie:", &sensitive_header
)) {
621 struct strbuf redacted_header
= STRBUF_INIT
;
624 while (isspace(*sensitive_header
))
628 * The contents of header starting from sensitive_header will
629 * subsequently be overridden, so it is fine to mutate this
630 * string (hence the assignment to "char *").
632 cookie
= (char *) sensitive_header
;
636 char *semicolon
= strstr(cookie
, "; ");
639 equals
= strchrnul(cookie
, '=');
641 /* invalid cookie, just append and continue */
642 strbuf_addstr(&redacted_header
, cookie
);
645 *equals
= 0; /* temporarily set to NUL for lookup */
646 if (string_list_lookup(&cookies_to_redact
, cookie
)) {
647 strbuf_addstr(&redacted_header
, cookie
);
648 strbuf_addstr(&redacted_header
, "=<redacted>");
651 strbuf_addstr(&redacted_header
, cookie
);
655 * There are more cookies. (Or, for some
656 * reason, the input string ends in "; ".)
658 strbuf_addstr(&redacted_header
, "; ");
659 cookie
= semicolon
+ strlen("; ");
665 strbuf_setlen(header
, sensitive_header
- header
->buf
);
666 strbuf_addbuf(header
, &redacted_header
);
670 static void curl_dump_header(const char *text
, unsigned char *ptr
, size_t size
, int hide_sensitive_header
)
672 struct strbuf out
= STRBUF_INIT
;
673 struct strbuf
**headers
, **header
;
675 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
676 text
, (long)size
, (long)size
);
677 trace_strbuf(&trace_curl
, &out
);
679 strbuf_add(&out
, ptr
, size
);
680 headers
= strbuf_split_max(&out
, '\n', 0);
682 for (header
= headers
; *header
; header
++) {
683 if (hide_sensitive_header
)
684 redact_sensitive_header(*header
);
685 strbuf_insert((*header
), 0, text
, strlen(text
));
686 strbuf_insert((*header
), strlen(text
), ": ", 2);
687 strbuf_rtrim((*header
));
688 strbuf_addch((*header
), '\n');
689 trace_strbuf(&trace_curl
, (*header
));
691 strbuf_list_free(headers
);
692 strbuf_release(&out
);
695 static void curl_dump_data(const char *text
, unsigned char *ptr
, size_t size
)
698 struct strbuf out
= STRBUF_INIT
;
699 unsigned int width
= 60;
701 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
702 text
, (long)size
, (long)size
);
703 trace_strbuf(&trace_curl
, &out
);
705 for (i
= 0; i
< size
; i
+= width
) {
709 strbuf_addf(&out
, "%s: ", text
);
710 for (w
= 0; (w
< width
) && (i
+ w
< size
); w
++) {
711 unsigned char ch
= ptr
[i
+ w
];
714 (ch
>= 0x20) && (ch
< 0x80)
717 strbuf_addch(&out
, '\n');
718 trace_strbuf(&trace_curl
, &out
);
720 strbuf_release(&out
);
723 static int curl_trace(CURL
*handle
, curl_infotype type
, char *data
, size_t size
, void *userp
)
726 enum { NO_FILTER
= 0, DO_FILTER
= 1 };
730 trace_printf_key(&trace_curl
, "== Info: %s", data
);
732 case CURLINFO_HEADER_OUT
:
733 text
= "=> Send header";
734 curl_dump_header(text
, (unsigned char *)data
, size
, DO_FILTER
);
736 case CURLINFO_DATA_OUT
:
737 if (trace_curl_data
) {
738 text
= "=> Send data";
739 curl_dump_data(text
, (unsigned char *)data
, size
);
742 case CURLINFO_SSL_DATA_OUT
:
743 if (trace_curl_data
) {
744 text
= "=> Send SSL data";
745 curl_dump_data(text
, (unsigned char *)data
, size
);
748 case CURLINFO_HEADER_IN
:
749 text
= "<= Recv header";
750 curl_dump_header(text
, (unsigned char *)data
, size
, NO_FILTER
);
752 case CURLINFO_DATA_IN
:
753 if (trace_curl_data
) {
754 text
= "<= Recv data";
755 curl_dump_data(text
, (unsigned char *)data
, size
);
758 case CURLINFO_SSL_DATA_IN
:
759 if (trace_curl_data
) {
760 text
= "<= Recv SSL data";
761 curl_dump_data(text
, (unsigned char *)data
, size
);
765 default: /* we ignore unknown types by default */
771 void setup_curl_trace(CURL
*handle
)
773 if (!trace_want(&trace_curl
))
775 curl_easy_setopt(handle
, CURLOPT_VERBOSE
, 1L);
776 curl_easy_setopt(handle
, CURLOPT_DEBUGFUNCTION
, curl_trace
);
777 curl_easy_setopt(handle
, CURLOPT_DEBUGDATA
, NULL
);
780 #ifdef CURLPROTO_HTTP
781 static long get_curl_allowed_protocols(int from_user
)
783 long allowed_protocols
= 0;
785 if (is_transport_allowed("http", from_user
))
786 allowed_protocols
|= CURLPROTO_HTTP
;
787 if (is_transport_allowed("https", from_user
))
788 allowed_protocols
|= CURLPROTO_HTTPS
;
789 if (is_transport_allowed("ftp", from_user
))
790 allowed_protocols
|= CURLPROTO_FTP
;
791 if (is_transport_allowed("ftps", from_user
))
792 allowed_protocols
|= CURLPROTO_FTPS
;
794 return allowed_protocols
;
798 #if LIBCURL_VERSION_NUM >=0x072f00
799 static int get_curl_http_version_opt(const char *version_string
, long *opt
)
806 { "HTTP/1.1", CURL_HTTP_VERSION_1_1
},
807 { "HTTP/2", CURL_HTTP_VERSION_2
}
810 for (i
= 0; i
< ARRAY_SIZE(choice
); i
++) {
811 if (!strcmp(version_string
, choice
[i
].name
)) {
812 *opt
= choice
[i
].opt_token
;
817 warning("unknown value given to http.version: '%s'", version_string
);
818 return -1; /* not found */
823 static CURL
*get_curl_handle(void)
825 CURL
*result
= curl_easy_init();
828 die("curl_easy_init failed");
830 if (!curl_ssl_verify
) {
831 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 0);
832 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 0);
834 /* Verify authenticity of the peer's certificate */
835 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 1);
836 /* The name in the cert must match whom we tried to connect */
837 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 2);
840 #if LIBCURL_VERSION_NUM >= 0x072f00 // 7.47.0
841 if (curl_http_version
) {
843 if (!get_curl_http_version_opt(curl_http_version
, &opt
)) {
844 /* Set request use http version */
845 curl_easy_setopt(result
, CURLOPT_HTTP_VERSION
, opt
);
850 #if LIBCURL_VERSION_NUM >= 0x070907
851 curl_easy_setopt(result
, CURLOPT_NETRC
, CURL_NETRC_OPTIONAL
);
853 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
854 curl_easy_setopt(result
, CURLOPT_HTTPAUTH
, CURLAUTH_ANY
);
857 #ifdef CURLGSSAPI_DELEGATION_FLAG
860 for (i
= 0; i
< ARRAY_SIZE(curl_deleg_levels
); i
++) {
861 if (!strcmp(curl_deleg
, curl_deleg_levels
[i
].name
)) {
862 curl_easy_setopt(result
, CURLOPT_GSSAPI_DELEGATION
,
863 curl_deleg_levels
[i
].curl_deleg_param
);
867 if (i
== ARRAY_SIZE(curl_deleg_levels
))
868 warning("Unknown delegation method '%s': using default",
873 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
874 !http_schannel_check_revoke
) {
875 #if LIBCURL_VERSION_NUM >= 0x072c00
876 curl_easy_setopt(result
, CURLOPT_SSL_OPTIONS
, CURLSSLOPT_NO_REVOKE
);
878 warning(_("CURLSSLOPT_NO_REVOKE not supported with cURL < 7.44.0"));
882 if (http_proactive_auth
)
883 init_curl_http_auth(result
);
885 if (getenv("GIT_SSL_VERSION"))
886 ssl_version
= getenv("GIT_SSL_VERSION");
887 if (ssl_version
&& *ssl_version
) {
889 for (i
= 0; i
< ARRAY_SIZE(sslversions
); i
++) {
890 if (!strcmp(ssl_version
, sslversions
[i
].name
)) {
891 curl_easy_setopt(result
, CURLOPT_SSLVERSION
,
892 sslversions
[i
].ssl_version
);
896 if (i
== ARRAY_SIZE(sslversions
))
897 warning("unsupported ssl version %s: using default",
901 if (getenv("GIT_SSL_CIPHER_LIST"))
902 ssl_cipherlist
= getenv("GIT_SSL_CIPHER_LIST");
903 if (ssl_cipherlist
!= NULL
&& *ssl_cipherlist
)
904 curl_easy_setopt(result
, CURLOPT_SSL_CIPHER_LIST
,
907 if (ssl_cert
!= NULL
)
908 curl_easy_setopt(result
, CURLOPT_SSLCERT
, ssl_cert
);
909 if (has_cert_password())
910 curl_easy_setopt(result
, CURLOPT_KEYPASSWD
, cert_auth
.password
);
911 #if LIBCURL_VERSION_NUM >= 0x070903
913 curl_easy_setopt(result
, CURLOPT_SSLKEY
, ssl_key
);
915 #if LIBCURL_VERSION_NUM >= 0x070908
916 if (ssl_capath
!= NULL
)
917 curl_easy_setopt(result
, CURLOPT_CAPATH
, ssl_capath
);
919 #if LIBCURL_VERSION_NUM >= 0x072c00
920 if (ssl_pinnedkey
!= NULL
)
921 curl_easy_setopt(result
, CURLOPT_PINNEDPUBLICKEY
, ssl_pinnedkey
);
923 if (http_ssl_backend
&& !strcmp("schannel", http_ssl_backend
) &&
924 !http_schannel_use_ssl_cainfo
) {
925 curl_easy_setopt(result
, CURLOPT_CAINFO
, NULL
);
926 #if LIBCURL_VERSION_NUM >= 0x073400
927 curl_easy_setopt(result
, CURLOPT_PROXY_CAINFO
, NULL
);
929 } else if (ssl_cainfo
!= NULL
)
930 curl_easy_setopt(result
, CURLOPT_CAINFO
, ssl_cainfo
);
932 if (curl_low_speed_limit
> 0 && curl_low_speed_time
> 0) {
933 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_LIMIT
,
934 curl_low_speed_limit
);
935 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_TIME
,
936 curl_low_speed_time
);
939 curl_easy_setopt(result
, CURLOPT_MAXREDIRS
, 20);
940 #if LIBCURL_VERSION_NUM >= 0x071301
941 curl_easy_setopt(result
, CURLOPT_POSTREDIR
, CURL_REDIR_POST_ALL
);
942 #elif LIBCURL_VERSION_NUM >= 0x071101
943 curl_easy_setopt(result
, CURLOPT_POST301
, 1);
945 #ifdef CURLPROTO_HTTP
946 curl_easy_setopt(result
, CURLOPT_REDIR_PROTOCOLS
,
947 get_curl_allowed_protocols(0));
948 curl_easy_setopt(result
, CURLOPT_PROTOCOLS
,
949 get_curl_allowed_protocols(-1));
951 warning(_("Protocol restrictions not supported with cURL < 7.19.4"));
953 if (getenv("GIT_CURL_VERBOSE"))
954 curl_easy_setopt(result
, CURLOPT_VERBOSE
, 1L);
955 setup_curl_trace(result
);
956 if (getenv("GIT_TRACE_CURL_NO_DATA"))
958 if (getenv("GIT_REDACT_COOKIES")) {
959 string_list_split(&cookies_to_redact
,
960 getenv("GIT_REDACT_COOKIES"), ',', -1);
961 string_list_sort(&cookies_to_redact
);
964 curl_easy_setopt(result
, CURLOPT_USERAGENT
,
965 user_agent
? user_agent
: git_user_agent());
967 if (curl_ftp_no_epsv
)
968 curl_easy_setopt(result
, CURLOPT_FTP_USE_EPSV
, 0);
970 #ifdef CURLOPT_USE_SSL
972 curl_easy_setopt(result
, CURLOPT_USE_SSL
, CURLUSESSL_TRY
);
976 * CURL also examines these variables as a fallback; but we need to query
977 * them here in order to decide whether to prompt for missing password (cf.
978 * init_curl_proxy_auth()).
980 * Unlike many other common environment variables, these are historically
981 * lowercase only. It appears that CURL did not know this and implemented
982 * only uppercase variants, which was later corrected to take both - with
983 * the exception of http_proxy, which is lowercase only also in CURL. As
984 * the lowercase versions are the historical quasi-standard, they take
985 * precedence here, as in CURL.
987 if (!curl_http_proxy
) {
988 if (http_auth
.protocol
&& !strcmp(http_auth
.protocol
, "https")) {
989 var_override(&curl_http_proxy
, getenv("HTTPS_PROXY"));
990 var_override(&curl_http_proxy
, getenv("https_proxy"));
992 var_override(&curl_http_proxy
, getenv("http_proxy"));
994 if (!curl_http_proxy
) {
995 var_override(&curl_http_proxy
, getenv("ALL_PROXY"));
996 var_override(&curl_http_proxy
, getenv("all_proxy"));
1000 if (curl_http_proxy
&& curl_http_proxy
[0] == '\0') {
1002 * Handle case with the empty http.proxy value here to keep
1003 * common code clean.
1004 * NB: empty option disables proxying at all.
1006 curl_easy_setopt(result
, CURLOPT_PROXY
, "");
1007 } else if (curl_http_proxy
) {
1008 #if LIBCURL_VERSION_NUM >= 0x071800
1009 if (starts_with(curl_http_proxy
, "socks5h"))
1010 curl_easy_setopt(result
,
1011 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5_HOSTNAME
);
1012 else if (starts_with(curl_http_proxy
, "socks5"))
1013 curl_easy_setopt(result
,
1014 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5
);
1015 else if (starts_with(curl_http_proxy
, "socks4a"))
1016 curl_easy_setopt(result
,
1017 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4A
);
1018 else if (starts_with(curl_http_proxy
, "socks"))
1019 curl_easy_setopt(result
,
1020 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4
);
1022 #if LIBCURL_VERSION_NUM >= 0x073400
1023 else if (starts_with(curl_http_proxy
, "https"))
1024 curl_easy_setopt(result
,
1025 CURLOPT_PROXYTYPE
, CURLPROXY_HTTPS
);
1027 if (strstr(curl_http_proxy
, "://"))
1028 credential_from_url(&proxy_auth
, curl_http_proxy
);
1030 struct strbuf url
= STRBUF_INIT
;
1031 strbuf_addf(&url
, "http://%s", curl_http_proxy
);
1032 credential_from_url(&proxy_auth
, url
.buf
);
1033 strbuf_release(&url
);
1036 if (!proxy_auth
.host
)
1037 die("Invalid proxy URL '%s'", curl_http_proxy
);
1039 curl_easy_setopt(result
, CURLOPT_PROXY
, proxy_auth
.host
);
1040 #if LIBCURL_VERSION_NUM >= 0x071304
1041 var_override(&curl_no_proxy
, getenv("NO_PROXY"));
1042 var_override(&curl_no_proxy
, getenv("no_proxy"));
1043 curl_easy_setopt(result
, CURLOPT_NOPROXY
, curl_no_proxy
);
1046 init_curl_proxy_auth(result
);
1048 set_curl_keepalive(result
);
1053 static void set_from_env(const char **var
, const char *envname
)
1055 const char *val
= getenv(envname
);
1060 void http_init(struct remote
*remote
, const char *url
, int proactive_auth
)
1062 char *low_speed_limit
;
1063 char *low_speed_time
;
1064 char *normalized_url
;
1065 struct urlmatch_config config
= { STRING_LIST_INIT_DUP
};
1067 config
.section
= "http";
1069 config
.collect_fn
= http_options
;
1070 config
.cascade_fn
= git_default_config
;
1073 http_is_verbose
= 0;
1074 normalized_url
= url_normalize(url
, &config
.url
);
1076 git_config(urlmatch_config_entry
, &config
);
1077 free(normalized_url
);
1079 #if LIBCURL_VERSION_NUM >= 0x073800
1080 if (http_ssl_backend
) {
1081 const curl_ssl_backend
**backends
;
1082 struct strbuf buf
= STRBUF_INIT
;
1085 switch (curl_global_sslset(-1, http_ssl_backend
, &backends
)) {
1086 case CURLSSLSET_UNKNOWN_BACKEND
:
1087 strbuf_addf(&buf
, _("Unsupported SSL backend '%s'. "
1088 "Supported SSL backends:"),
1090 for (i
= 0; backends
[i
]; i
++)
1091 strbuf_addf(&buf
, "\n\t%s", backends
[i
]->name
);
1093 case CURLSSLSET_NO_BACKENDS
:
1094 die(_("Could not set SSL backend to '%s': "
1095 "cURL was built without SSL backends"),
1097 case CURLSSLSET_TOO_LATE
:
1098 die(_("Could not set SSL backend to '%s': already set"),
1106 if (curl_global_init(CURL_GLOBAL_ALL
) != CURLE_OK
)
1107 die("curl_global_init failed");
1109 http_proactive_auth
= proactive_auth
;
1111 if (remote
&& remote
->http_proxy
)
1112 curl_http_proxy
= xstrdup(remote
->http_proxy
);
1115 var_override(&http_proxy_authmethod
, remote
->http_proxy_authmethod
);
1117 pragma_header
= curl_slist_append(http_copy_default_headers(),
1118 "Pragma: no-cache");
1119 no_pragma_header
= curl_slist_append(http_copy_default_headers(),
1122 #ifdef USE_CURL_MULTI
1124 char *http_max_requests
= getenv("GIT_HTTP_MAX_REQUESTS");
1125 if (http_max_requests
!= NULL
)
1126 max_requests
= atoi(http_max_requests
);
1129 curlm
= curl_multi_init();
1131 die("curl_multi_init failed");
1134 if (getenv("GIT_SSL_NO_VERIFY"))
1135 curl_ssl_verify
= 0;
1137 set_from_env(&ssl_cert
, "GIT_SSL_CERT");
1138 #if LIBCURL_VERSION_NUM >= 0x070903
1139 set_from_env(&ssl_key
, "GIT_SSL_KEY");
1141 #if LIBCURL_VERSION_NUM >= 0x070908
1142 set_from_env(&ssl_capath
, "GIT_SSL_CAPATH");
1144 set_from_env(&ssl_cainfo
, "GIT_SSL_CAINFO");
1146 set_from_env(&user_agent
, "GIT_HTTP_USER_AGENT");
1148 low_speed_limit
= getenv("GIT_HTTP_LOW_SPEED_LIMIT");
1149 if (low_speed_limit
!= NULL
)
1150 curl_low_speed_limit
= strtol(low_speed_limit
, NULL
, 10);
1151 low_speed_time
= getenv("GIT_HTTP_LOW_SPEED_TIME");
1152 if (low_speed_time
!= NULL
)
1153 curl_low_speed_time
= strtol(low_speed_time
, NULL
, 10);
1155 if (curl_ssl_verify
== -1)
1156 curl_ssl_verify
= 1;
1158 curl_session_count
= 0;
1159 #ifdef USE_CURL_MULTI
1160 if (max_requests
< 1)
1161 max_requests
= DEFAULT_MAX_REQUESTS
;
1164 if (getenv("GIT_CURL_FTP_NO_EPSV"))
1165 curl_ftp_no_epsv
= 1;
1168 credential_from_url(&http_auth
, url
);
1169 if (!ssl_cert_password_required
&&
1170 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
1171 starts_with(url
, "https://"))
1172 ssl_cert_password_required
= 1;
1175 #ifndef NO_CURL_EASY_DUPHANDLE
1176 curl_default
= get_curl_handle();
1180 void http_cleanup(void)
1182 struct active_request_slot
*slot
= active_queue_head
;
1184 while (slot
!= NULL
) {
1185 struct active_request_slot
*next
= slot
->next
;
1186 if (slot
->curl
!= NULL
) {
1187 xmulti_remove_handle(slot
);
1188 curl_easy_cleanup(slot
->curl
);
1193 active_queue_head
= NULL
;
1195 #ifndef NO_CURL_EASY_DUPHANDLE
1196 curl_easy_cleanup(curl_default
);
1199 #ifdef USE_CURL_MULTI
1200 curl_multi_cleanup(curlm
);
1202 curl_global_cleanup();
1204 curl_slist_free_all(extra_http_headers
);
1205 extra_http_headers
= NULL
;
1207 curl_slist_free_all(pragma_header
);
1208 pragma_header
= NULL
;
1210 curl_slist_free_all(no_pragma_header
);
1211 no_pragma_header
= NULL
;
1213 if (curl_http_proxy
) {
1214 free((void *)curl_http_proxy
);
1215 curl_http_proxy
= NULL
;
1218 if (proxy_auth
.password
) {
1219 memset(proxy_auth
.password
, 0, strlen(proxy_auth
.password
));
1220 FREE_AND_NULL(proxy_auth
.password
);
1223 free((void *)curl_proxyuserpwd
);
1224 curl_proxyuserpwd
= NULL
;
1226 free((void *)http_proxy_authmethod
);
1227 http_proxy_authmethod
= NULL
;
1229 if (cert_auth
.password
!= NULL
) {
1230 memset(cert_auth
.password
, 0, strlen(cert_auth
.password
));
1231 FREE_AND_NULL(cert_auth
.password
);
1233 ssl_cert_password_required
= 0;
1235 FREE_AND_NULL(cached_accept_language
);
1238 struct active_request_slot
*get_active_slot(void)
1240 struct active_request_slot
*slot
= active_queue_head
;
1241 struct active_request_slot
*newslot
;
1243 #ifdef USE_CURL_MULTI
1246 /* Wait for a slot to open up if the queue is full */
1247 while (active_requests
>= max_requests
) {
1248 curl_multi_perform(curlm
, &num_transfers
);
1249 if (num_transfers
< active_requests
)
1250 process_curl_messages();
1254 while (slot
!= NULL
&& slot
->in_use
)
1258 newslot
= xmalloc(sizeof(*newslot
));
1259 newslot
->curl
= NULL
;
1260 newslot
->in_use
= 0;
1261 newslot
->next
= NULL
;
1263 slot
= active_queue_head
;
1265 active_queue_head
= newslot
;
1267 while (slot
->next
!= NULL
)
1269 slot
->next
= newslot
;
1274 if (slot
->curl
== NULL
) {
1275 #ifdef NO_CURL_EASY_DUPHANDLE
1276 slot
->curl
= get_curl_handle();
1278 slot
->curl
= curl_easy_duphandle(curl_default
);
1280 curl_session_count
++;
1285 slot
->results
= NULL
;
1286 slot
->finished
= NULL
;
1287 slot
->callback_data
= NULL
;
1288 slot
->callback_func
= NULL
;
1289 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEFILE
, curl_cookie_file
);
1290 if (curl_save_cookies
)
1291 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEJAR
, curl_cookie_file
);
1292 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, pragma_header
);
1293 curl_easy_setopt(slot
->curl
, CURLOPT_ERRORBUFFER
, curl_errorstr
);
1294 curl_easy_setopt(slot
->curl
, CURLOPT_CUSTOMREQUEST
, NULL
);
1295 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, NULL
);
1296 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, NULL
);
1297 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, NULL
);
1298 curl_easy_setopt(slot
->curl
, CURLOPT_UPLOAD
, 0);
1299 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1300 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 1);
1301 curl_easy_setopt(slot
->curl
, CURLOPT_RANGE
, NULL
);
1304 * Default following to off unless "ALWAYS" is configured; this gives
1305 * callers a sane starting point, and they can tweak for individual
1306 * HTTP_FOLLOW_* cases themselves.
1308 if (http_follow_config
== HTTP_FOLLOW_ALWAYS
)
1309 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1311 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 0);
1313 #if LIBCURL_VERSION_NUM >= 0x070a08
1314 curl_easy_setopt(slot
->curl
, CURLOPT_IPRESOLVE
, git_curl_ipresolve
);
1316 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1317 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPAUTH
, http_auth_methods
);
1319 if (http_auth
.password
|| curl_empty_auth_enabled())
1320 init_curl_http_auth(slot
->curl
);
1325 int start_active_slot(struct active_request_slot
*slot
)
1327 #ifdef USE_CURL_MULTI
1328 CURLMcode curlm_result
= curl_multi_add_handle(curlm
, slot
->curl
);
1331 if (curlm_result
!= CURLM_OK
&&
1332 curlm_result
!= CURLM_CALL_MULTI_PERFORM
) {
1333 warning("curl_multi_add_handle failed: %s",
1334 curl_multi_strerror(curlm_result
));
1341 * We know there must be something to do, since we just added
1344 curl_multi_perform(curlm
, &num_transfers
);
1349 #ifdef USE_CURL_MULTI
1352 int (*fill
)(void *);
1353 struct fill_chain
*next
;
1356 static struct fill_chain
*fill_cfg
;
1358 void add_fill_function(void *data
, int (*fill
)(void *))
1360 struct fill_chain
*new_fill
= xmalloc(sizeof(*new_fill
));
1361 struct fill_chain
**linkp
= &fill_cfg
;
1362 new_fill
->data
= data
;
1363 new_fill
->fill
= fill
;
1364 new_fill
->next
= NULL
;
1366 linkp
= &(*linkp
)->next
;
1370 void fill_active_slots(void)
1372 struct active_request_slot
*slot
= active_queue_head
;
1374 while (active_requests
< max_requests
) {
1375 struct fill_chain
*fill
;
1376 for (fill
= fill_cfg
; fill
; fill
= fill
->next
)
1377 if (fill
->fill(fill
->data
))
1384 while (slot
!= NULL
) {
1385 if (!slot
->in_use
&& slot
->curl
!= NULL
1386 && curl_session_count
> min_curl_sessions
) {
1387 curl_easy_cleanup(slot
->curl
);
1389 curl_session_count
--;
1395 void step_active_slots(void)
1398 CURLMcode curlm_result
;
1401 curlm_result
= curl_multi_perform(curlm
, &num_transfers
);
1402 } while (curlm_result
== CURLM_CALL_MULTI_PERFORM
);
1403 if (num_transfers
< active_requests
) {
1404 process_curl_messages();
1405 fill_active_slots();
1410 void run_active_slot(struct active_request_slot
*slot
)
1412 #ifdef USE_CURL_MULTI
1417 struct timeval select_timeout
;
1420 slot
->finished
= &finished
;
1422 step_active_slots();
1425 #if LIBCURL_VERSION_NUM >= 0x070f04
1427 curl_multi_timeout(curlm
, &curl_timeout
);
1428 if (curl_timeout
== 0) {
1430 } else if (curl_timeout
== -1) {
1431 select_timeout
.tv_sec
= 0;
1432 select_timeout
.tv_usec
= 50000;
1434 select_timeout
.tv_sec
= curl_timeout
/ 1000;
1435 select_timeout
.tv_usec
= (curl_timeout
% 1000) * 1000;
1438 select_timeout
.tv_sec
= 0;
1439 select_timeout
.tv_usec
= 50000;
1446 curl_multi_fdset(curlm
, &readfds
, &writefds
, &excfds
, &max_fd
);
1449 * It can happen that curl_multi_timeout returns a pathologically
1450 * long timeout when curl_multi_fdset returns no file descriptors
1451 * to read. See commit message for more details.
1454 (select_timeout
.tv_sec
> 0 ||
1455 select_timeout
.tv_usec
> 50000)) {
1456 select_timeout
.tv_sec
= 0;
1457 select_timeout
.tv_usec
= 50000;
1460 select(max_fd
+1, &readfds
, &writefds
, &excfds
, &select_timeout
);
1464 while (slot
->in_use
) {
1465 slot
->curl_result
= curl_easy_perform(slot
->curl
);
1466 finish_active_slot(slot
);
1471 static void release_active_slot(struct active_request_slot
*slot
)
1473 closedown_active_slot(slot
);
1475 xmulti_remove_handle(slot
);
1476 if (curl_session_count
> min_curl_sessions
) {
1477 curl_easy_cleanup(slot
->curl
);
1479 curl_session_count
--;
1482 #ifdef USE_CURL_MULTI
1483 fill_active_slots();
1487 void finish_all_active_slots(void)
1489 struct active_request_slot
*slot
= active_queue_head
;
1491 while (slot
!= NULL
)
1493 run_active_slot(slot
);
1494 slot
= active_queue_head
;
1500 /* Helpers for modifying and creating URLs */
1501 static inline int needs_quote(int ch
)
1503 if (((ch
>= 'A') && (ch
<= 'Z'))
1504 || ((ch
>= 'a') && (ch
<= 'z'))
1505 || ((ch
>= '0') && (ch
<= '9'))
1513 static char *quote_ref_url(const char *base
, const char *ref
)
1515 struct strbuf buf
= STRBUF_INIT
;
1519 end_url_with_slash(&buf
, base
);
1521 for (cp
= ref
; (ch
= *cp
) != 0; cp
++)
1522 if (needs_quote(ch
))
1523 strbuf_addf(&buf
, "%%%02x", ch
);
1525 strbuf_addch(&buf
, *cp
);
1527 return strbuf_detach(&buf
, NULL
);
1530 void append_remote_object_url(struct strbuf
*buf
, const char *url
,
1532 int only_two_digit_prefix
)
1534 end_url_with_slash(buf
, url
);
1536 strbuf_addf(buf
, "objects/%.*s/", 2, hex
);
1537 if (!only_two_digit_prefix
)
1538 strbuf_addstr(buf
, hex
+ 2);
1541 char *get_remote_object_url(const char *url
, const char *hex
,
1542 int only_two_digit_prefix
)
1544 struct strbuf buf
= STRBUF_INIT
;
1545 append_remote_object_url(&buf
, url
, hex
, only_two_digit_prefix
);
1546 return strbuf_detach(&buf
, NULL
);
1549 void normalize_curl_result(CURLcode
*result
, long http_code
,
1550 char *errorstr
, size_t errorlen
)
1553 * If we see a failing http code with CURLE_OK, we have turned off
1554 * FAILONERROR (to keep the server's custom error response), and should
1555 * translate the code into failure here.
1557 * Likewise, if we see a redirect (30x code), that means we turned off
1558 * redirect-following, and we should treat the result as an error.
1560 if (*result
== CURLE_OK
&& http_code
>= 300) {
1561 *result
= CURLE_HTTP_RETURNED_ERROR
;
1563 * Normally curl will already have put the "reason phrase"
1564 * from the server into curl_errorstr; unfortunately without
1565 * FAILONERROR it is lost, so we can give only the numeric
1568 xsnprintf(errorstr
, errorlen
,
1569 "The requested URL returned error: %ld",
1574 static int handle_curl_result(struct slot_results
*results
)
1576 normalize_curl_result(&results
->curl_result
, results
->http_code
,
1577 curl_errorstr
, sizeof(curl_errorstr
));
1579 if (results
->curl_result
== CURLE_OK
) {
1580 credential_approve(&http_auth
);
1581 if (proxy_auth
.password
)
1582 credential_approve(&proxy_auth
);
1584 } else if (missing_target(results
))
1585 return HTTP_MISSING_TARGET
;
1586 else if (results
->http_code
== 401) {
1587 if (http_auth
.username
&& http_auth
.password
) {
1588 credential_reject(&http_auth
);
1591 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1592 http_auth_methods
&= ~CURLAUTH_GSSNEGOTIATE
;
1593 if (results
->auth_avail
) {
1594 http_auth_methods
&= results
->auth_avail
;
1595 http_auth_methods_restricted
= 1;
1601 if (results
->http_connectcode
== 407)
1602 credential_reject(&proxy_auth
);
1603 #if LIBCURL_VERSION_NUM >= 0x070c00
1604 if (!curl_errorstr
[0])
1605 strlcpy(curl_errorstr
,
1606 curl_easy_strerror(results
->curl_result
),
1607 sizeof(curl_errorstr
));
1613 int run_one_slot(struct active_request_slot
*slot
,
1614 struct slot_results
*results
)
1616 slot
->results
= results
;
1617 if (!start_active_slot(slot
)) {
1618 xsnprintf(curl_errorstr
, sizeof(curl_errorstr
),
1619 "failed to start HTTP request");
1620 return HTTP_START_FAILED
;
1623 run_active_slot(slot
);
1624 return handle_curl_result(results
);
1627 struct curl_slist
*http_copy_default_headers(void)
1629 struct curl_slist
*headers
= NULL
, *h
;
1631 for (h
= extra_http_headers
; h
; h
= h
->next
)
1632 headers
= curl_slist_append(headers
, h
->data
);
1637 static CURLcode
curlinfo_strbuf(CURL
*curl
, CURLINFO info
, struct strbuf
*buf
)
1643 ret
= curl_easy_getinfo(curl
, info
, &ptr
);
1645 strbuf_addstr(buf
, ptr
);
1650 * Check for and extract a content-type parameter. "raw"
1651 * should be positioned at the start of the potential
1652 * parameter, with any whitespace already removed.
1654 * "name" is the name of the parameter. The value is appended
1657 static int extract_param(const char *raw
, const char *name
,
1660 size_t len
= strlen(name
);
1662 if (strncasecmp(raw
, name
, len
))
1670 while (*raw
&& !isspace(*raw
) && *raw
!= ';')
1671 strbuf_addch(out
, *raw
++);
1676 * Extract a normalized version of the content type, with any
1677 * spaces suppressed, all letters lowercased, and no trailing ";"
1680 * Note that we will silently remove even invalid whitespace. For
1681 * example, "text / plain" is specifically forbidden by RFC 2616,
1682 * but "text/plain" is the only reasonable output, and this keeps
1685 * If the "charset" argument is not NULL, store the value of any
1686 * charset parameter there.
1689 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
1690 * "text / plain" -> "text/plain"
1692 static void extract_content_type(struct strbuf
*raw
, struct strbuf
*type
,
1693 struct strbuf
*charset
)
1698 strbuf_grow(type
, raw
->len
);
1699 for (p
= raw
->buf
; *p
; p
++) {
1706 strbuf_addch(type
, tolower(*p
));
1712 strbuf_reset(charset
);
1714 while (isspace(*p
) || *p
== ';')
1716 if (!extract_param(p
, "charset", charset
))
1718 while (*p
&& !isspace(*p
))
1722 if (!charset
->len
&& starts_with(type
->buf
, "text/"))
1723 strbuf_addstr(charset
, "ISO-8859-1");
1726 static void write_accept_language(struct strbuf
*buf
)
1729 * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than
1730 * that, q-value will be smaller than 0.001, the minimum q-value the
1731 * HTTP specification allows. See
1732 * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value.
1734 const int MAX_DECIMAL_PLACES
= 3;
1735 const int MAX_LANGUAGE_TAGS
= 1000;
1736 const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE
= 4000;
1737 char **language_tags
= NULL
;
1739 const char *s
= get_preferred_languages();
1741 struct strbuf tag
= STRBUF_INIT
;
1743 /* Don't add Accept-Language header if no language is preferred. */
1748 * Split the colon-separated string of preferred languages into
1749 * language_tags array.
1752 /* collect language tag */
1753 for (; *s
&& (isalnum(*s
) || *s
== '_'); s
++)
1754 strbuf_addch(&tag
, *s
== '_' ? '-' : *s
);
1756 /* skip .codeset, @modifier and any other unnecessary parts */
1757 while (*s
&& *s
!= ':')
1762 REALLOC_ARRAY(language_tags
, num_langs
);
1763 language_tags
[num_langs
- 1] = strbuf_detach(&tag
, NULL
);
1764 if (num_langs
>= MAX_LANGUAGE_TAGS
- 1) /* -1 for '*' */
1769 /* write Accept-Language header into buf */
1771 int last_buf_len
= 0;
1777 REALLOC_ARRAY(language_tags
, num_langs
+ 1);
1778 language_tags
[num_langs
++] = "*"; /* it's OK; this won't be freed */
1780 /* compute decimal_places */
1781 for (max_q
= 1, decimal_places
= 0;
1782 max_q
< num_langs
&& decimal_places
<= MAX_DECIMAL_PLACES
;
1783 decimal_places
++, max_q
*= 10)
1786 xsnprintf(q_format
, sizeof(q_format
), ";q=0.%%0%dd", decimal_places
);
1788 strbuf_addstr(buf
, "Accept-Language: ");
1790 for (i
= 0; i
< num_langs
; i
++) {
1792 strbuf_addstr(buf
, ", ");
1794 strbuf_addstr(buf
, language_tags
[i
]);
1797 strbuf_addf(buf
, q_format
, max_q
- i
);
1799 if (buf
->len
> MAX_ACCEPT_LANGUAGE_HEADER_SIZE
) {
1800 strbuf_remove(buf
, last_buf_len
, buf
->len
- last_buf_len
);
1804 last_buf_len
= buf
->len
;
1808 /* free language tags -- last one is a static '*' */
1809 for (i
= 0; i
< num_langs
- 1; i
++)
1810 free(language_tags
[i
]);
1811 free(language_tags
);
1815 * Get an Accept-Language header which indicates user's preferred languages.
1819 * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1"
1820 * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1"
1821 * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1"
1822 * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1"
1823 * LANGUAGE= LANG=C -> ""
1825 static const char *get_accept_language(void)
1827 if (!cached_accept_language
) {
1828 struct strbuf buf
= STRBUF_INIT
;
1829 write_accept_language(&buf
);
1831 cached_accept_language
= strbuf_detach(&buf
, NULL
);
1834 return cached_accept_language
;
1837 static void http_opt_request_remainder(CURL
*curl
, off_t pos
)
1840 xsnprintf(buf
, sizeof(buf
), "%"PRIuMAX
"-", (uintmax_t)pos
);
1841 curl_easy_setopt(curl
, CURLOPT_RANGE
, buf
);
1844 /* http_request() targets */
1845 #define HTTP_REQUEST_STRBUF 0
1846 #define HTTP_REQUEST_FILE 1
1848 static int http_request(const char *url
,
1849 void *result
, int target
,
1850 const struct http_get_options
*options
)
1852 struct active_request_slot
*slot
;
1853 struct slot_results results
;
1854 struct curl_slist
*headers
= http_copy_default_headers();
1855 struct strbuf buf
= STRBUF_INIT
;
1856 const char *accept_language
;
1859 slot
= get_active_slot();
1860 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1862 if (result
== NULL
) {
1863 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 1);
1865 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
1866 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, result
);
1868 if (target
== HTTP_REQUEST_FILE
) {
1869 off_t posn
= ftello(result
);
1870 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1873 http_opt_request_remainder(slot
->curl
, posn
);
1875 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1879 accept_language
= get_accept_language();
1881 if (accept_language
)
1882 headers
= curl_slist_append(headers
, accept_language
);
1884 strbuf_addstr(&buf
, "Pragma:");
1885 if (options
&& options
->no_cache
)
1886 strbuf_addstr(&buf
, " no-cache");
1887 if (options
&& options
->initial_request
&&
1888 http_follow_config
== HTTP_FOLLOW_INITIAL
)
1889 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1891 headers
= curl_slist_append(headers
, buf
.buf
);
1893 /* Add additional headers here */
1894 if (options
&& options
->extra_headers
) {
1895 const struct string_list_item
*item
;
1896 for_each_string_list_item(item
, options
->extra_headers
) {
1897 headers
= curl_slist_append(headers
, item
->string
);
1901 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, url
);
1902 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
1903 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "");
1904 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 0);
1906 ret
= run_one_slot(slot
, &results
);
1908 if (options
&& options
->content_type
) {
1909 struct strbuf raw
= STRBUF_INIT
;
1910 curlinfo_strbuf(slot
->curl
, CURLINFO_CONTENT_TYPE
, &raw
);
1911 extract_content_type(&raw
, options
->content_type
,
1913 strbuf_release(&raw
);
1916 if (options
&& options
->effective_url
)
1917 curlinfo_strbuf(slot
->curl
, CURLINFO_EFFECTIVE_URL
,
1918 options
->effective_url
);
1920 curl_slist_free_all(headers
);
1921 strbuf_release(&buf
);
1927 * Update the "base" url to a more appropriate value, as deduced by
1928 * redirects seen when requesting a URL starting with "url".
1930 * The "asked" parameter is a URL that we asked curl to access, and must begin
1933 * The "got" parameter is the URL that curl reported to us as where we ended
1936 * Returns 1 if we updated the base url, 0 otherwise.
1938 * Our basic strategy is to compare "base" and "asked" to find the bits
1939 * specific to our request. We then strip those bits off of "got" to yield the
1940 * new base. So for example, if our base is "http://example.com/foo.git",
1941 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1942 * with "https://other.example.com/foo.git/info/refs". We would want the
1943 * new URL to become "https://other.example.com/foo.git".
1945 * Note that this assumes a sane redirect scheme. It's entirely possible
1946 * in the example above to end up at a URL that does not even end in
1947 * "info/refs". In such a case we die. There's not much we can do, such a
1948 * scheme is unlikely to represent a real git repository, and failing to
1949 * rewrite the base opens options for malicious redirects to do funny things.
1951 static int update_url_from_redirect(struct strbuf
*base
,
1953 const struct strbuf
*got
)
1958 if (!strcmp(asked
, got
->buf
))
1961 if (!skip_prefix(asked
, base
->buf
, &tail
))
1962 BUG("update_url_from_redirect: %s is not a superset of %s",
1966 if (!strip_suffix_mem(got
->buf
, &new_len
, tail
))
1967 die(_("unable to update url base from redirection:\n"
1973 strbuf_add(base
, got
->buf
, new_len
);
1978 static int http_request_reauth(const char *url
,
1979 void *result
, int target
,
1980 struct http_get_options
*options
)
1982 int ret
= http_request(url
, result
, target
, options
);
1984 if (ret
!= HTTP_OK
&& ret
!= HTTP_REAUTH
)
1987 if (options
&& options
->effective_url
&& options
->base_url
) {
1988 if (update_url_from_redirect(options
->base_url
,
1989 url
, options
->effective_url
)) {
1990 credential_from_url(&http_auth
, options
->base_url
->buf
);
1991 url
= options
->effective_url
->buf
;
1995 if (ret
!= HTTP_REAUTH
)
1999 * The previous request may have put cruft into our output stream; we
2000 * should clear it out before making our next request.
2003 case HTTP_REQUEST_STRBUF
:
2004 strbuf_reset(result
);
2006 case HTTP_REQUEST_FILE
:
2007 if (fflush(result
)) {
2008 error_errno("unable to flush a file");
2009 return HTTP_START_FAILED
;
2012 if (ftruncate(fileno(result
), 0) < 0) {
2013 error_errno("unable to truncate a file");
2014 return HTTP_START_FAILED
;
2018 BUG("Unknown http_request target");
2021 credential_fill(&http_auth
);
2023 return http_request(url
, result
, target
, options
);
2026 int http_get_strbuf(const char *url
,
2027 struct strbuf
*result
,
2028 struct http_get_options
*options
)
2030 return http_request_reauth(url
, result
, HTTP_REQUEST_STRBUF
, options
);
2034 * Downloads a URL and stores the result in the given file.
2036 * If a previous interrupted download is detected (i.e. a previous temporary
2037 * file is still around) the download is resumed.
2039 static int http_get_file(const char *url
, const char *filename
,
2040 struct http_get_options
*options
)
2043 struct strbuf tmpfile
= STRBUF_INIT
;
2046 strbuf_addf(&tmpfile
, "%s.temp", filename
);
2047 result
= fopen(tmpfile
.buf
, "a");
2049 error("Unable to open local file %s", tmpfile
.buf
);
2054 ret
= http_request_reauth(url
, result
, HTTP_REQUEST_FILE
, options
);
2057 if (ret
== HTTP_OK
&& finalize_object_file(tmpfile
.buf
, filename
))
2060 strbuf_release(&tmpfile
);
2064 int http_fetch_ref(const char *base
, struct ref
*ref
)
2066 struct http_get_options options
= {0};
2068 struct strbuf buffer
= STRBUF_INIT
;
2071 options
.no_cache
= 1;
2073 url
= quote_ref_url(base
, ref
->name
);
2074 if (http_get_strbuf(url
, &buffer
, &options
) == HTTP_OK
) {
2075 strbuf_rtrim(&buffer
);
2076 if (buffer
.len
== the_hash_algo
->hexsz
)
2077 ret
= get_oid_hex(buffer
.buf
, &ref
->old_oid
);
2078 else if (starts_with(buffer
.buf
, "ref: ")) {
2079 ref
->symref
= xstrdup(buffer
.buf
+ 5);
2084 strbuf_release(&buffer
);
2089 /* Helpers for fetching packs */
2090 static char *fetch_pack_index(unsigned char *hash
, const char *base_url
)
2093 struct strbuf buf
= STRBUF_INIT
;
2095 if (http_is_verbose
)
2096 fprintf(stderr
, "Getting index for pack %s\n", hash_to_hex(hash
));
2098 end_url_with_slash(&buf
, base_url
);
2099 strbuf_addf(&buf
, "objects/pack/pack-%s.idx", hash_to_hex(hash
));
2100 url
= strbuf_detach(&buf
, NULL
);
2102 strbuf_addf(&buf
, "%s.temp", sha1_pack_index_name(hash
));
2103 tmp
= strbuf_detach(&buf
, NULL
);
2105 if (http_get_file(url
, tmp
, NULL
) != HTTP_OK
) {
2106 error("Unable to get pack index %s", url
);
2114 static int fetch_and_setup_pack_index(struct packed_git
**packs_head
,
2115 unsigned char *sha1
, const char *base_url
)
2117 struct packed_git
*new_pack
;
2118 char *tmp_idx
= NULL
;
2121 if (has_pack_index(sha1
)) {
2122 new_pack
= parse_pack_index(sha1
, sha1_pack_index_name(sha1
));
2124 return -1; /* parse_pack_index() already issued error message */
2128 tmp_idx
= fetch_pack_index(sha1
, base_url
);
2132 new_pack
= parse_pack_index(sha1
, tmp_idx
);
2137 return -1; /* parse_pack_index() already issued error message */
2140 ret
= verify_pack_index(new_pack
);
2142 close_pack_index(new_pack
);
2143 ret
= finalize_object_file(tmp_idx
, sha1_pack_index_name(sha1
));
2150 new_pack
->next
= *packs_head
;
2151 *packs_head
= new_pack
;
2155 int http_get_info_packs(const char *base_url
, struct packed_git
**packs_head
)
2157 struct http_get_options options
= {0};
2161 struct strbuf buf
= STRBUF_INIT
;
2162 struct object_id oid
;
2164 end_url_with_slash(&buf
, base_url
);
2165 strbuf_addstr(&buf
, "objects/info/packs");
2166 url
= strbuf_detach(&buf
, NULL
);
2168 options
.no_cache
= 1;
2169 ret
= http_get_strbuf(url
, &buf
, &options
);
2175 if (skip_prefix(data
, "P pack-", &data
) &&
2176 !parse_oid_hex(data
, &oid
, &data
) &&
2177 skip_prefix(data
, ".pack", &data
) &&
2178 (*data
== '\n' || *data
== '\0')) {
2179 fetch_and_setup_pack_index(packs_head
, oid
.hash
, base_url
);
2181 data
= strchrnul(data
, '\n');
2184 data
++; /* skip past newline */
2192 void release_http_pack_request(struct http_pack_request
*preq
)
2194 if (preq
->packfile
!= NULL
) {
2195 fclose(preq
->packfile
);
2196 preq
->packfile
= NULL
;
2199 strbuf_release(&preq
->tmpfile
);
2204 int finish_http_pack_request(struct http_pack_request
*preq
)
2206 struct packed_git
**lst
;
2207 struct packed_git
*p
= preq
->target
;
2210 struct child_process ip
= CHILD_PROCESS_INIT
;
2212 close_pack_index(p
);
2214 fclose(preq
->packfile
);
2215 preq
->packfile
= NULL
;
2219 lst
= &((*lst
)->next
);
2220 *lst
= (*lst
)->next
;
2222 if (!strip_suffix(preq
->tmpfile
.buf
, ".pack.temp", &len
))
2223 BUG("pack tmpfile does not end in .pack.temp?");
2224 tmp_idx
= xstrfmt("%.*s.idx.temp", (int)len
, preq
->tmpfile
.buf
);
2226 argv_array_push(&ip
.args
, "index-pack");
2227 argv_array_pushl(&ip
.args
, "-o", tmp_idx
, NULL
);
2228 argv_array_push(&ip
.args
, preq
->tmpfile
.buf
);
2233 if (run_command(&ip
)) {
2234 unlink(preq
->tmpfile
.buf
);
2240 unlink(sha1_pack_index_name(p
->hash
));
2242 if (finalize_object_file(preq
->tmpfile
.buf
, sha1_pack_name(p
->hash
))
2243 || finalize_object_file(tmp_idx
, sha1_pack_index_name(p
->hash
))) {
2248 install_packed_git(the_repository
, p
);
2253 struct http_pack_request
*new_http_pack_request(
2254 struct packed_git
*target
, const char *base_url
)
2256 off_t prev_posn
= 0;
2257 struct strbuf buf
= STRBUF_INIT
;
2258 struct http_pack_request
*preq
;
2260 preq
= xcalloc(1, sizeof(*preq
));
2261 strbuf_init(&preq
->tmpfile
, 0);
2262 preq
->target
= target
;
2264 end_url_with_slash(&buf
, base_url
);
2265 strbuf_addf(&buf
, "objects/pack/pack-%s.pack",
2266 hash_to_hex(target
->hash
));
2267 preq
->url
= strbuf_detach(&buf
, NULL
);
2269 strbuf_addf(&preq
->tmpfile
, "%s.temp", sha1_pack_name(target
->hash
));
2270 preq
->packfile
= fopen(preq
->tmpfile
.buf
, "a");
2271 if (!preq
->packfile
) {
2272 error("Unable to open local file %s for pack",
2277 preq
->slot
= get_active_slot();
2278 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_FILE
, preq
->packfile
);
2279 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite
);
2280 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_URL
, preq
->url
);
2281 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
2285 * If there is data present from a previous transfer attempt,
2286 * resume where it left off
2288 prev_posn
= ftello(preq
->packfile
);
2290 if (http_is_verbose
)
2292 "Resuming fetch of pack %s at byte %"PRIuMAX
"\n",
2293 hash_to_hex(target
->hash
),
2294 (uintmax_t)prev_posn
);
2295 http_opt_request_remainder(preq
->slot
->curl
, prev_posn
);
2301 strbuf_release(&preq
->tmpfile
);
2307 /* Helpers for fetching objects (loose) */
2308 static size_t fwrite_sha1_file(char *ptr
, size_t eltsize
, size_t nmemb
,
2311 unsigned char expn
[4096];
2312 size_t size
= eltsize
* nmemb
;
2314 struct http_object_request
*freq
= data
;
2315 struct active_request_slot
*slot
= freq
->slot
;
2318 CURLcode c
= curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
,
2321 BUG("curl_easy_getinfo for HTTP code failed: %s",
2322 curl_easy_strerror(c
));
2323 if (slot
->http_code
>= 300)
2328 ssize_t retval
= xwrite(freq
->localfile
,
2329 (char *) ptr
+ posn
, size
- posn
);
2331 return posn
/ eltsize
;
2333 } while (posn
< size
);
2335 freq
->stream
.avail_in
= size
;
2336 freq
->stream
.next_in
= (void *)ptr
;
2338 freq
->stream
.next_out
= expn
;
2339 freq
->stream
.avail_out
= sizeof(expn
);
2340 freq
->zret
= git_inflate(&freq
->stream
, Z_SYNC_FLUSH
);
2341 the_hash_algo
->update_fn(&freq
->c
, expn
,
2342 sizeof(expn
) - freq
->stream
.avail_out
);
2343 } while (freq
->stream
.avail_in
&& freq
->zret
== Z_OK
);
2347 struct http_object_request
*new_http_object_request(const char *base_url
,
2348 const struct object_id
*oid
)
2350 char *hex
= oid_to_hex(oid
);
2351 struct strbuf filename
= STRBUF_INIT
;
2352 struct strbuf prevfile
= STRBUF_INIT
;
2354 char prev_buf
[PREV_BUF_SIZE
];
2355 ssize_t prev_read
= 0;
2356 off_t prev_posn
= 0;
2357 struct http_object_request
*freq
;
2359 freq
= xcalloc(1, sizeof(*freq
));
2360 strbuf_init(&freq
->tmpfile
, 0);
2361 oidcpy(&freq
->oid
, oid
);
2362 freq
->localfile
= -1;
2364 loose_object_path(the_repository
, &filename
, oid
);
2365 strbuf_addf(&freq
->tmpfile
, "%s.temp", filename
.buf
);
2367 strbuf_addf(&prevfile
, "%s.prev", filename
.buf
);
2368 unlink_or_warn(prevfile
.buf
);
2369 rename(freq
->tmpfile
.buf
, prevfile
.buf
);
2370 unlink_or_warn(freq
->tmpfile
.buf
);
2371 strbuf_release(&filename
);
2373 if (freq
->localfile
!= -1)
2374 error("fd leakage in start: %d", freq
->localfile
);
2375 freq
->localfile
= open(freq
->tmpfile
.buf
,
2376 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2378 * This could have failed due to the "lazy directory creation";
2379 * try to mkdir the last path component.
2381 if (freq
->localfile
< 0 && errno
== ENOENT
) {
2382 char *dir
= strrchr(freq
->tmpfile
.buf
, '/');
2385 mkdir(freq
->tmpfile
.buf
, 0777);
2388 freq
->localfile
= open(freq
->tmpfile
.buf
,
2389 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2392 if (freq
->localfile
< 0) {
2393 error_errno("Couldn't create temporary file %s",
2398 git_inflate_init(&freq
->stream
);
2400 the_hash_algo
->init_fn(&freq
->c
);
2402 freq
->url
= get_remote_object_url(base_url
, hex
, 0);
2405 * If a previous temp file is present, process what was already
2408 prevlocal
= open(prevfile
.buf
, O_RDONLY
);
2409 if (prevlocal
!= -1) {
2411 prev_read
= xread(prevlocal
, prev_buf
, PREV_BUF_SIZE
);
2413 if (fwrite_sha1_file(prev_buf
,
2416 freq
) == prev_read
) {
2417 prev_posn
+= prev_read
;
2422 } while (prev_read
> 0);
2425 unlink_or_warn(prevfile
.buf
);
2426 strbuf_release(&prevfile
);
2429 * Reset inflate/SHA1 if there was an error reading the previous temp
2430 * file; also rewind to the beginning of the local file.
2432 if (prev_read
== -1) {
2433 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
2434 git_inflate_init(&freq
->stream
);
2435 the_hash_algo
->init_fn(&freq
->c
);
2438 lseek(freq
->localfile
, 0, SEEK_SET
);
2439 if (ftruncate(freq
->localfile
, 0) < 0) {
2440 error_errno("Couldn't truncate temporary file %s",
2447 freq
->slot
= get_active_slot();
2449 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FILE
, freq
);
2450 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FAILONERROR
, 0);
2451 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_sha1_file
);
2452 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_ERRORBUFFER
, freq
->errorstr
);
2453 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_URL
, freq
->url
);
2454 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_HTTPHEADER
, no_pragma_header
);
2457 * If we have successfully processed data from a previous fetch
2458 * attempt, only fetch the data we don't already have.
2461 if (http_is_verbose
)
2463 "Resuming fetch of object %s at byte %"PRIuMAX
"\n",
2464 hex
, (uintmax_t)prev_posn
);
2465 http_opt_request_remainder(freq
->slot
->curl
, prev_posn
);
2471 strbuf_release(&prevfile
);
2477 void process_http_object_request(struct http_object_request
*freq
)
2479 if (freq
->slot
== NULL
)
2481 freq
->curl_result
= freq
->slot
->curl_result
;
2482 freq
->http_code
= freq
->slot
->http_code
;
2486 int finish_http_object_request(struct http_object_request
*freq
)
2489 struct strbuf filename
= STRBUF_INIT
;
2491 close(freq
->localfile
);
2492 freq
->localfile
= -1;
2494 process_http_object_request(freq
);
2496 if (freq
->http_code
== 416) {
2497 warning("requested range invalid; we may already have all the data.");
2498 } else if (freq
->curl_result
!= CURLE_OK
) {
2499 if (stat(freq
->tmpfile
.buf
, &st
) == 0)
2500 if (st
.st_size
== 0)
2501 unlink_or_warn(freq
->tmpfile
.buf
);
2505 git_inflate_end(&freq
->stream
);
2506 the_hash_algo
->final_fn(freq
->real_oid
.hash
, &freq
->c
);
2507 if (freq
->zret
!= Z_STREAM_END
) {
2508 unlink_or_warn(freq
->tmpfile
.buf
);
2511 if (!oideq(&freq
->oid
, &freq
->real_oid
)) {
2512 unlink_or_warn(freq
->tmpfile
.buf
);
2515 loose_object_path(the_repository
, &filename
, &freq
->oid
);
2516 freq
->rename
= finalize_object_file(freq
->tmpfile
.buf
, filename
.buf
);
2517 strbuf_release(&filename
);
2519 return freq
->rename
;
2522 void abort_http_object_request(struct http_object_request
*freq
)
2524 unlink_or_warn(freq
->tmpfile
.buf
);
2526 release_http_object_request(freq
);
2529 void release_http_object_request(struct http_object_request
*freq
)
2531 if (freq
->localfile
!= -1) {
2532 close(freq
->localfile
);
2533 freq
->localfile
= -1;
2535 FREE_AND_NULL(freq
->url
);
2536 if (freq
->slot
!= NULL
) {
2537 freq
->slot
->callback_func
= NULL
;
2538 freq
->slot
->callback_data
= NULL
;
2539 release_active_slot(freq
->slot
);
2542 strbuf_release(&freq
->tmpfile
);