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 *ssl_cert
;
52 static const char *ssl_cipherlist
;
53 static const char *ssl_version
;
58 { "sslv2", CURL_SSLVERSION_SSLv2
},
59 { "sslv3", CURL_SSLVERSION_SSLv3
},
60 { "tlsv1", CURL_SSLVERSION_TLSv1
},
61 #if LIBCURL_VERSION_NUM >= 0x072200
62 { "tlsv1.0", CURL_SSLVERSION_TLSv1_0
},
63 { "tlsv1.1", CURL_SSLVERSION_TLSv1_1
},
64 { "tlsv1.2", CURL_SSLVERSION_TLSv1_2
},
67 #if LIBCURL_VERSION_NUM >= 0x070903
68 static const char *ssl_key
;
70 #if LIBCURL_VERSION_NUM >= 0x070908
71 static const char *ssl_capath
;
73 #if LIBCURL_VERSION_NUM >= 0x072c00
74 static const char *ssl_pinnedkey
;
76 static const char *ssl_cainfo
;
77 static long curl_low_speed_limit
= -1;
78 static long curl_low_speed_time
= -1;
79 static int curl_ftp_no_epsv
;
80 static const char *curl_http_proxy
;
81 static const char *curl_no_proxy
;
82 static const char *http_proxy_authmethod
;
86 } proxy_authmethods
[] = {
87 { "basic", CURLAUTH_BASIC
},
88 { "digest", CURLAUTH_DIGEST
},
89 { "negotiate", CURLAUTH_GSSNEGOTIATE
},
90 { "ntlm", CURLAUTH_NTLM
},
91 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
92 { "anyauth", CURLAUTH_ANY
},
95 * CURLAUTH_DIGEST_IE has no corresponding command-line option in
96 * curl(1) and is not included in CURLAUTH_ANY, so we leave it out
100 #ifdef CURLGSSAPI_DELEGATION_FLAG
101 static const char *curl_deleg
;
104 long curl_deleg_param
;
105 } curl_deleg_levels
[] = {
106 { "none", CURLGSSAPI_DELEGATION_NONE
},
107 { "policy", CURLGSSAPI_DELEGATION_POLICY_FLAG
},
108 { "always", CURLGSSAPI_DELEGATION_FLAG
},
112 static struct credential proxy_auth
= CREDENTIAL_INIT
;
113 static const char *curl_proxyuserpwd
;
114 static const char *curl_cookie_file
;
115 static int curl_save_cookies
;
116 struct credential http_auth
= CREDENTIAL_INIT
;
117 static int http_proactive_auth
;
118 static const char *user_agent
;
119 static int curl_empty_auth
= -1;
121 enum http_follow_config http_follow_config
= HTTP_FOLLOW_INITIAL
;
123 #if LIBCURL_VERSION_NUM >= 0x071700
124 /* Use CURLOPT_KEYPASSWD as is */
125 #elif LIBCURL_VERSION_NUM >= 0x070903
126 #define CURLOPT_KEYPASSWD CURLOPT_SSLKEYPASSWD
128 #define CURLOPT_KEYPASSWD CURLOPT_SSLCERTPASSWD
131 static struct credential cert_auth
= CREDENTIAL_INIT
;
132 static int ssl_cert_password_required
;
133 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
134 static unsigned long http_auth_methods
= CURLAUTH_ANY
;
135 static int http_auth_methods_restricted
;
136 /* Modes for which empty_auth cannot actually help us. */
137 static unsigned long empty_auth_useless
=
139 #ifdef CURLAUTH_DIGEST_IE
145 static struct curl_slist
*pragma_header
;
146 static struct curl_slist
*no_pragma_header
;
147 static struct curl_slist
*extra_http_headers
;
149 static struct active_request_slot
*active_queue_head
;
151 static char *cached_accept_language
;
153 size_t fread_buffer(char *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
155 size_t size
= eltsize
* nmemb
;
156 struct buffer
*buffer
= buffer_
;
158 if (size
> buffer
->buf
.len
- buffer
->posn
)
159 size
= buffer
->buf
.len
- buffer
->posn
;
160 memcpy(ptr
, buffer
->buf
.buf
+ buffer
->posn
, size
);
161 buffer
->posn
+= size
;
166 #ifndef NO_CURL_IOCTL
167 curlioerr
ioctl_buffer(CURL
*handle
, int cmd
, void *clientp
)
169 struct buffer
*buffer
= clientp
;
175 case CURLIOCMD_RESTARTREAD
:
180 return CURLIOE_UNKNOWNCMD
;
185 size_t fwrite_buffer(char *ptr
, size_t eltsize
, size_t nmemb
, void *buffer_
)
187 size_t size
= eltsize
* nmemb
;
188 struct strbuf
*buffer
= buffer_
;
190 strbuf_add(buffer
, ptr
, size
);
194 size_t fwrite_null(char *ptr
, size_t eltsize
, size_t nmemb
, void *strbuf
)
196 return eltsize
* nmemb
;
199 static void closedown_active_slot(struct active_request_slot
*slot
)
205 static void finish_active_slot(struct active_request_slot
*slot
)
207 closedown_active_slot(slot
);
208 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
, &slot
->http_code
);
210 if (slot
->finished
!= NULL
)
211 (*slot
->finished
) = 1;
213 /* Store slot results so they can be read after the slot is reused */
214 if (slot
->results
!= NULL
) {
215 slot
->results
->curl_result
= slot
->curl_result
;
216 slot
->results
->http_code
= slot
->http_code
;
217 #if LIBCURL_VERSION_NUM >= 0x070a08
218 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTPAUTH_AVAIL
,
219 &slot
->results
->auth_avail
);
221 slot
->results
->auth_avail
= 0;
224 curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CONNECTCODE
,
225 &slot
->results
->http_connectcode
);
228 /* Run callback if appropriate */
229 if (slot
->callback_func
!= NULL
)
230 slot
->callback_func(slot
->callback_data
);
233 static void xmulti_remove_handle(struct active_request_slot
*slot
)
235 #ifdef USE_CURL_MULTI
236 curl_multi_remove_handle(curlm
, slot
->curl
);
240 #ifdef USE_CURL_MULTI
241 static void process_curl_messages(void)
244 struct active_request_slot
*slot
;
245 CURLMsg
*curl_message
= curl_multi_info_read(curlm
, &num_messages
);
247 while (curl_message
!= NULL
) {
248 if (curl_message
->msg
== CURLMSG_DONE
) {
249 int curl_result
= curl_message
->data
.result
;
250 slot
= active_queue_head
;
251 while (slot
!= NULL
&&
252 slot
->curl
!= curl_message
->easy_handle
)
255 xmulti_remove_handle(slot
);
256 slot
->curl_result
= curl_result
;
257 finish_active_slot(slot
);
259 fprintf(stderr
, "Received DONE message for unknown request!\n");
262 fprintf(stderr
, "Unknown CURL message received: %d\n",
263 (int)curl_message
->msg
);
265 curl_message
= curl_multi_info_read(curlm
, &num_messages
);
270 static int http_options(const char *var
, const char *value
, void *cb
)
272 if (!strcmp("http.sslverify", var
)) {
273 curl_ssl_verify
= git_config_bool(var
, value
);
276 if (!strcmp("http.sslcipherlist", var
))
277 return git_config_string(&ssl_cipherlist
, var
, value
);
278 if (!strcmp("http.sslversion", var
))
279 return git_config_string(&ssl_version
, var
, value
);
280 if (!strcmp("http.sslcert", var
))
281 return git_config_pathname(&ssl_cert
, var
, value
);
282 #if LIBCURL_VERSION_NUM >= 0x070903
283 if (!strcmp("http.sslkey", var
))
284 return git_config_pathname(&ssl_key
, var
, value
);
286 #if LIBCURL_VERSION_NUM >= 0x070908
287 if (!strcmp("http.sslcapath", var
))
288 return git_config_pathname(&ssl_capath
, var
, value
);
290 if (!strcmp("http.sslcainfo", var
))
291 return git_config_pathname(&ssl_cainfo
, var
, value
);
292 if (!strcmp("http.sslcertpasswordprotected", var
)) {
293 ssl_cert_password_required
= git_config_bool(var
, value
);
296 if (!strcmp("http.ssltry", var
)) {
297 curl_ssl_try
= git_config_bool(var
, value
);
300 if (!strcmp("http.minsessions", var
)) {
301 min_curl_sessions
= git_config_int(var
, value
);
302 #ifndef USE_CURL_MULTI
303 if (min_curl_sessions
> 1)
304 min_curl_sessions
= 1;
308 #ifdef USE_CURL_MULTI
309 if (!strcmp("http.maxrequests", var
)) {
310 max_requests
= git_config_int(var
, value
);
314 if (!strcmp("http.lowspeedlimit", var
)) {
315 curl_low_speed_limit
= (long)git_config_int(var
, value
);
318 if (!strcmp("http.lowspeedtime", var
)) {
319 curl_low_speed_time
= (long)git_config_int(var
, value
);
323 if (!strcmp("http.noepsv", var
)) {
324 curl_ftp_no_epsv
= git_config_bool(var
, value
);
327 if (!strcmp("http.proxy", var
))
328 return git_config_string(&curl_http_proxy
, var
, value
);
330 if (!strcmp("http.proxyauthmethod", var
))
331 return git_config_string(&http_proxy_authmethod
, var
, value
);
333 if (!strcmp("http.cookiefile", var
))
334 return git_config_pathname(&curl_cookie_file
, var
, value
);
335 if (!strcmp("http.savecookies", var
)) {
336 curl_save_cookies
= git_config_bool(var
, value
);
340 if (!strcmp("http.postbuffer", var
)) {
341 http_post_buffer
= git_config_ssize_t(var
, value
);
342 if (http_post_buffer
< 0)
343 warning(_("negative value for http.postbuffer; defaulting to %d"), LARGE_PACKET_MAX
);
344 if (http_post_buffer
< LARGE_PACKET_MAX
)
345 http_post_buffer
= LARGE_PACKET_MAX
;
349 if (!strcmp("http.useragent", var
))
350 return git_config_string(&user_agent
, var
, value
);
352 if (!strcmp("http.emptyauth", var
)) {
353 if (value
&& !strcmp("auto", value
))
354 curl_empty_auth
= -1;
356 curl_empty_auth
= git_config_bool(var
, value
);
360 if (!strcmp("http.delegation", var
)) {
361 #ifdef CURLGSSAPI_DELEGATION_FLAG
362 return git_config_string(&curl_deleg
, var
, value
);
364 warning(_("Delegation control is not supported with cURL < 7.22.0"));
369 if (!strcmp("http.pinnedpubkey", var
)) {
370 #if LIBCURL_VERSION_NUM >= 0x072c00
371 return git_config_pathname(&ssl_pinnedkey
, var
, value
);
373 warning(_("Public key pinning not supported with cURL < 7.44.0"));
378 if (!strcmp("http.extraheader", var
)) {
380 return config_error_nonbool(var
);
381 } else if (!*value
) {
382 curl_slist_free_all(extra_http_headers
);
383 extra_http_headers
= NULL
;
386 curl_slist_append(extra_http_headers
, value
);
391 if (!strcmp("http.followredirects", var
)) {
392 if (value
&& !strcmp(value
, "initial"))
393 http_follow_config
= HTTP_FOLLOW_INITIAL
;
394 else if (git_config_bool(var
, value
))
395 http_follow_config
= HTTP_FOLLOW_ALWAYS
;
397 http_follow_config
= HTTP_FOLLOW_NONE
;
401 /* Fall back on the default ones */
402 return git_default_config(var
, value
, cb
);
405 static int curl_empty_auth_enabled(void)
407 if (curl_empty_auth
>= 0)
408 return curl_empty_auth
;
410 #ifndef LIBCURL_CAN_HANDLE_AUTH_ANY
412 * Our libcurl is too old to do AUTH_ANY in the first place;
413 * just default to turning the feature off.
417 * In the automatic case, kick in the empty-auth
418 * hack as long as we would potentially try some
419 * method more exotic than "Basic" or "Digest".
421 * But only do this when this is our second or
422 * subsequent request, as by then we know what
423 * methods are available.
425 if (http_auth_methods_restricted
&&
426 (http_auth_methods
& ~empty_auth_useless
))
432 static void init_curl_http_auth(CURL
*result
)
434 if (!http_auth
.username
|| !*http_auth
.username
) {
435 if (curl_empty_auth_enabled())
436 curl_easy_setopt(result
, CURLOPT_USERPWD
, ":");
440 credential_fill(&http_auth
);
442 #if LIBCURL_VERSION_NUM >= 0x071301
443 curl_easy_setopt(result
, CURLOPT_USERNAME
, http_auth
.username
);
444 curl_easy_setopt(result
, CURLOPT_PASSWORD
, http_auth
.password
);
447 static struct strbuf up
= STRBUF_INIT
;
449 * Note that we assume we only ever have a single set of
450 * credentials in a given program run, so we do not have
451 * to worry about updating this buffer, only setting its
455 strbuf_addf(&up
, "%s:%s",
456 http_auth
.username
, http_auth
.password
);
457 curl_easy_setopt(result
, CURLOPT_USERPWD
, up
.buf
);
462 /* *var must be free-able */
463 static void var_override(const char **var
, char *value
)
467 *var
= xstrdup(value
);
471 static void set_proxyauth_name_password(CURL
*result
)
473 #if LIBCURL_VERSION_NUM >= 0x071301
474 curl_easy_setopt(result
, CURLOPT_PROXYUSERNAME
,
475 proxy_auth
.username
);
476 curl_easy_setopt(result
, CURLOPT_PROXYPASSWORD
,
477 proxy_auth
.password
);
479 struct strbuf s
= STRBUF_INIT
;
481 strbuf_addstr_urlencode(&s
, proxy_auth
.username
, 1);
482 strbuf_addch(&s
, ':');
483 strbuf_addstr_urlencode(&s
, proxy_auth
.password
, 1);
484 curl_proxyuserpwd
= strbuf_detach(&s
, NULL
);
485 curl_easy_setopt(result
, CURLOPT_PROXYUSERPWD
, curl_proxyuserpwd
);
489 static void init_curl_proxy_auth(CURL
*result
)
491 if (proxy_auth
.username
) {
492 if (!proxy_auth
.password
)
493 credential_fill(&proxy_auth
);
494 set_proxyauth_name_password(result
);
497 var_override(&http_proxy_authmethod
, getenv("GIT_HTTP_PROXY_AUTHMETHOD"));
499 #if LIBCURL_VERSION_NUM >= 0x070a07 /* CURLOPT_PROXYAUTH and CURLAUTH_ANY */
500 if (http_proxy_authmethod
) {
502 for (i
= 0; i
< ARRAY_SIZE(proxy_authmethods
); i
++) {
503 if (!strcmp(http_proxy_authmethod
, proxy_authmethods
[i
].name
)) {
504 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
,
505 proxy_authmethods
[i
].curlauth_param
);
509 if (i
== ARRAY_SIZE(proxy_authmethods
)) {
510 warning("unsupported proxy authentication method %s: using anyauth",
511 http_proxy_authmethod
);
512 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
516 curl_easy_setopt(result
, CURLOPT_PROXYAUTH
, CURLAUTH_ANY
);
520 static int has_cert_password(void)
522 if (ssl_cert
== NULL
|| ssl_cert_password_required
!= 1)
524 if (!cert_auth
.password
) {
525 cert_auth
.protocol
= xstrdup("cert");
526 cert_auth
.username
= xstrdup("");
527 cert_auth
.path
= xstrdup(ssl_cert
);
528 credential_fill(&cert_auth
);
533 #if LIBCURL_VERSION_NUM >= 0x071900
534 static void set_curl_keepalive(CURL
*c
)
536 curl_easy_setopt(c
, CURLOPT_TCP_KEEPALIVE
, 1);
539 #elif LIBCURL_VERSION_NUM >= 0x071000
540 static int sockopt_callback(void *client
, curl_socket_t fd
, curlsocktype type
)
544 socklen_t len
= (socklen_t
)sizeof(ka
);
546 if (type
!= CURLSOCKTYPE_IPCXN
)
549 rc
= setsockopt(fd
, SOL_SOCKET
, SO_KEEPALIVE
, (void *)&ka
, len
);
551 warning_errno("unable to set SO_KEEPALIVE on socket");
553 return 0; /* CURL_SOCKOPT_OK only exists since curl 7.21.5 */
556 static void set_curl_keepalive(CURL
*c
)
558 curl_easy_setopt(c
, CURLOPT_SOCKOPTFUNCTION
, sockopt_callback
);
562 static void set_curl_keepalive(CURL
*c
)
564 /* not supported on older curl versions */
568 static void redact_sensitive_header(struct strbuf
*header
)
570 const char *sensitive_header
;
572 if (skip_prefix(header
->buf
, "Authorization:", &sensitive_header
) ||
573 skip_prefix(header
->buf
, "Proxy-Authorization:", &sensitive_header
)) {
574 /* The first token is the type, which is OK to log */
575 while (isspace(*sensitive_header
))
577 while (*sensitive_header
&& !isspace(*sensitive_header
))
579 /* Everything else is opaque and possibly sensitive */
580 strbuf_setlen(header
, sensitive_header
- header
->buf
);
581 strbuf_addstr(header
, " <redacted>");
582 } else if (cookies_to_redact
.nr
&&
583 skip_prefix(header
->buf
, "Cookie:", &sensitive_header
)) {
584 struct strbuf redacted_header
= STRBUF_INIT
;
587 while (isspace(*sensitive_header
))
591 * The contents of header starting from sensitive_header will
592 * subsequently be overridden, so it is fine to mutate this
593 * string (hence the assignment to "char *").
595 cookie
= (char *) sensitive_header
;
599 char *semicolon
= strstr(cookie
, "; ");
602 equals
= strchrnul(cookie
, '=');
604 /* invalid cookie, just append and continue */
605 strbuf_addstr(&redacted_header
, cookie
);
608 *equals
= 0; /* temporarily set to NUL for lookup */
609 if (string_list_lookup(&cookies_to_redact
, cookie
)) {
610 strbuf_addstr(&redacted_header
, cookie
);
611 strbuf_addstr(&redacted_header
, "=<redacted>");
614 strbuf_addstr(&redacted_header
, cookie
);
618 * There are more cookies. (Or, for some
619 * reason, the input string ends in "; ".)
621 strbuf_addstr(&redacted_header
, "; ");
622 cookie
= semicolon
+ strlen("; ");
628 strbuf_setlen(header
, sensitive_header
- header
->buf
);
629 strbuf_addbuf(header
, &redacted_header
);
633 static void curl_dump_header(const char *text
, unsigned char *ptr
, size_t size
, int hide_sensitive_header
)
635 struct strbuf out
= STRBUF_INIT
;
636 struct strbuf
**headers
, **header
;
638 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
639 text
, (long)size
, (long)size
);
640 trace_strbuf(&trace_curl
, &out
);
642 strbuf_add(&out
, ptr
, size
);
643 headers
= strbuf_split_max(&out
, '\n', 0);
645 for (header
= headers
; *header
; header
++) {
646 if (hide_sensitive_header
)
647 redact_sensitive_header(*header
);
648 strbuf_insert((*header
), 0, text
, strlen(text
));
649 strbuf_insert((*header
), strlen(text
), ": ", 2);
650 strbuf_rtrim((*header
));
651 strbuf_addch((*header
), '\n');
652 trace_strbuf(&trace_curl
, (*header
));
654 strbuf_list_free(headers
);
655 strbuf_release(&out
);
658 static void curl_dump_data(const char *text
, unsigned char *ptr
, size_t size
)
661 struct strbuf out
= STRBUF_INIT
;
662 unsigned int width
= 60;
664 strbuf_addf(&out
, "%s, %10.10ld bytes (0x%8.8lx)\n",
665 text
, (long)size
, (long)size
);
666 trace_strbuf(&trace_curl
, &out
);
668 for (i
= 0; i
< size
; i
+= width
) {
672 strbuf_addf(&out
, "%s: ", text
);
673 for (w
= 0; (w
< width
) && (i
+ w
< size
); w
++) {
674 unsigned char ch
= ptr
[i
+ w
];
677 (ch
>= 0x20) && (ch
< 0x80)
680 strbuf_addch(&out
, '\n');
681 trace_strbuf(&trace_curl
, &out
);
683 strbuf_release(&out
);
686 static int curl_trace(CURL
*handle
, curl_infotype type
, char *data
, size_t size
, void *userp
)
689 enum { NO_FILTER
= 0, DO_FILTER
= 1 };
693 trace_printf_key(&trace_curl
, "== Info: %s", data
);
695 case CURLINFO_HEADER_OUT
:
696 text
= "=> Send header";
697 curl_dump_header(text
, (unsigned char *)data
, size
, DO_FILTER
);
699 case CURLINFO_DATA_OUT
:
700 if (trace_curl_data
) {
701 text
= "=> Send data";
702 curl_dump_data(text
, (unsigned char *)data
, size
);
705 case CURLINFO_SSL_DATA_OUT
:
706 if (trace_curl_data
) {
707 text
= "=> Send SSL data";
708 curl_dump_data(text
, (unsigned char *)data
, size
);
711 case CURLINFO_HEADER_IN
:
712 text
= "<= Recv header";
713 curl_dump_header(text
, (unsigned char *)data
, size
, NO_FILTER
);
715 case CURLINFO_DATA_IN
:
716 if (trace_curl_data
) {
717 text
= "<= Recv data";
718 curl_dump_data(text
, (unsigned char *)data
, size
);
721 case CURLINFO_SSL_DATA_IN
:
722 if (trace_curl_data
) {
723 text
= "<= Recv SSL data";
724 curl_dump_data(text
, (unsigned char *)data
, size
);
728 default: /* we ignore unknown types by default */
734 void setup_curl_trace(CURL
*handle
)
736 if (!trace_want(&trace_curl
))
738 curl_easy_setopt(handle
, CURLOPT_VERBOSE
, 1L);
739 curl_easy_setopt(handle
, CURLOPT_DEBUGFUNCTION
, curl_trace
);
740 curl_easy_setopt(handle
, CURLOPT_DEBUGDATA
, NULL
);
743 #ifdef CURLPROTO_HTTP
744 static long get_curl_allowed_protocols(int from_user
)
746 long allowed_protocols
= 0;
748 if (is_transport_allowed("http", from_user
))
749 allowed_protocols
|= CURLPROTO_HTTP
;
750 if (is_transport_allowed("https", from_user
))
751 allowed_protocols
|= CURLPROTO_HTTPS
;
752 if (is_transport_allowed("ftp", from_user
))
753 allowed_protocols
|= CURLPROTO_FTP
;
754 if (is_transport_allowed("ftps", from_user
))
755 allowed_protocols
|= CURLPROTO_FTPS
;
757 return allowed_protocols
;
761 static CURL
*get_curl_handle(void)
763 CURL
*result
= curl_easy_init();
766 die("curl_easy_init failed");
768 if (!curl_ssl_verify
) {
769 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 0);
770 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 0);
772 /* Verify authenticity of the peer's certificate */
773 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYPEER
, 1);
774 /* The name in the cert must match whom we tried to connect */
775 curl_easy_setopt(result
, CURLOPT_SSL_VERIFYHOST
, 2);
778 #if LIBCURL_VERSION_NUM >= 0x070907
779 curl_easy_setopt(result
, CURLOPT_NETRC
, CURL_NETRC_OPTIONAL
);
781 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
782 curl_easy_setopt(result
, CURLOPT_HTTPAUTH
, CURLAUTH_ANY
);
785 #ifdef CURLGSSAPI_DELEGATION_FLAG
788 for (i
= 0; i
< ARRAY_SIZE(curl_deleg_levels
); i
++) {
789 if (!strcmp(curl_deleg
, curl_deleg_levels
[i
].name
)) {
790 curl_easy_setopt(result
, CURLOPT_GSSAPI_DELEGATION
,
791 curl_deleg_levels
[i
].curl_deleg_param
);
795 if (i
== ARRAY_SIZE(curl_deleg_levels
))
796 warning("Unknown delegation method '%s': using default",
801 if (http_proactive_auth
)
802 init_curl_http_auth(result
);
804 if (getenv("GIT_SSL_VERSION"))
805 ssl_version
= getenv("GIT_SSL_VERSION");
806 if (ssl_version
&& *ssl_version
) {
808 for (i
= 0; i
< ARRAY_SIZE(sslversions
); i
++) {
809 if (!strcmp(ssl_version
, sslversions
[i
].name
)) {
810 curl_easy_setopt(result
, CURLOPT_SSLVERSION
,
811 sslversions
[i
].ssl_version
);
815 if (i
== ARRAY_SIZE(sslversions
))
816 warning("unsupported ssl version %s: using default",
820 if (getenv("GIT_SSL_CIPHER_LIST"))
821 ssl_cipherlist
= getenv("GIT_SSL_CIPHER_LIST");
822 if (ssl_cipherlist
!= NULL
&& *ssl_cipherlist
)
823 curl_easy_setopt(result
, CURLOPT_SSL_CIPHER_LIST
,
826 if (ssl_cert
!= NULL
)
827 curl_easy_setopt(result
, CURLOPT_SSLCERT
, ssl_cert
);
828 if (has_cert_password())
829 curl_easy_setopt(result
, CURLOPT_KEYPASSWD
, cert_auth
.password
);
830 #if LIBCURL_VERSION_NUM >= 0x070903
832 curl_easy_setopt(result
, CURLOPT_SSLKEY
, ssl_key
);
834 #if LIBCURL_VERSION_NUM >= 0x070908
835 if (ssl_capath
!= NULL
)
836 curl_easy_setopt(result
, CURLOPT_CAPATH
, ssl_capath
);
838 #if LIBCURL_VERSION_NUM >= 0x072c00
839 if (ssl_pinnedkey
!= NULL
)
840 curl_easy_setopt(result
, CURLOPT_PINNEDPUBLICKEY
, ssl_pinnedkey
);
842 if (ssl_cainfo
!= NULL
)
843 curl_easy_setopt(result
, CURLOPT_CAINFO
, ssl_cainfo
);
845 if (curl_low_speed_limit
> 0 && curl_low_speed_time
> 0) {
846 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_LIMIT
,
847 curl_low_speed_limit
);
848 curl_easy_setopt(result
, CURLOPT_LOW_SPEED_TIME
,
849 curl_low_speed_time
);
852 curl_easy_setopt(result
, CURLOPT_MAXREDIRS
, 20);
853 #if LIBCURL_VERSION_NUM >= 0x071301
854 curl_easy_setopt(result
, CURLOPT_POSTREDIR
, CURL_REDIR_POST_ALL
);
855 #elif LIBCURL_VERSION_NUM >= 0x071101
856 curl_easy_setopt(result
, CURLOPT_POST301
, 1);
858 #ifdef CURLPROTO_HTTP
859 curl_easy_setopt(result
, CURLOPT_REDIR_PROTOCOLS
,
860 get_curl_allowed_protocols(0));
861 curl_easy_setopt(result
, CURLOPT_PROTOCOLS
,
862 get_curl_allowed_protocols(-1));
864 warning("protocol restrictions not applied to curl redirects because\n"
865 "your curl version is too old (>= 7.19.4)");
867 if (getenv("GIT_CURL_VERBOSE"))
868 curl_easy_setopt(result
, CURLOPT_VERBOSE
, 1L);
869 setup_curl_trace(result
);
870 if (getenv("GIT_TRACE_CURL_NO_DATA"))
872 if (getenv("GIT_REDACT_COOKIES")) {
873 string_list_split(&cookies_to_redact
,
874 getenv("GIT_REDACT_COOKIES"), ',', -1);
875 string_list_sort(&cookies_to_redact
);
878 curl_easy_setopt(result
, CURLOPT_USERAGENT
,
879 user_agent
? user_agent
: git_user_agent());
881 if (curl_ftp_no_epsv
)
882 curl_easy_setopt(result
, CURLOPT_FTP_USE_EPSV
, 0);
884 #ifdef CURLOPT_USE_SSL
886 curl_easy_setopt(result
, CURLOPT_USE_SSL
, CURLUSESSL_TRY
);
890 * CURL also examines these variables as a fallback; but we need to query
891 * them here in order to decide whether to prompt for missing password (cf.
892 * init_curl_proxy_auth()).
894 * Unlike many other common environment variables, these are historically
895 * lowercase only. It appears that CURL did not know this and implemented
896 * only uppercase variants, which was later corrected to take both - with
897 * the exception of http_proxy, which is lowercase only also in CURL. As
898 * the lowercase versions are the historical quasi-standard, they take
899 * precedence here, as in CURL.
901 if (!curl_http_proxy
) {
902 if (http_auth
.protocol
&& !strcmp(http_auth
.protocol
, "https")) {
903 var_override(&curl_http_proxy
, getenv("HTTPS_PROXY"));
904 var_override(&curl_http_proxy
, getenv("https_proxy"));
906 var_override(&curl_http_proxy
, getenv("http_proxy"));
908 if (!curl_http_proxy
) {
909 var_override(&curl_http_proxy
, getenv("ALL_PROXY"));
910 var_override(&curl_http_proxy
, getenv("all_proxy"));
914 if (curl_http_proxy
&& curl_http_proxy
[0] == '\0') {
916 * Handle case with the empty http.proxy value here to keep
918 * NB: empty option disables proxying at all.
920 curl_easy_setopt(result
, CURLOPT_PROXY
, "");
921 } else if (curl_http_proxy
) {
922 #if LIBCURL_VERSION_NUM >= 0x071800
923 if (starts_with(curl_http_proxy
, "socks5h"))
924 curl_easy_setopt(result
,
925 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5_HOSTNAME
);
926 else if (starts_with(curl_http_proxy
, "socks5"))
927 curl_easy_setopt(result
,
928 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS5
);
929 else if (starts_with(curl_http_proxy
, "socks4a"))
930 curl_easy_setopt(result
,
931 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4A
);
932 else if (starts_with(curl_http_proxy
, "socks"))
933 curl_easy_setopt(result
,
934 CURLOPT_PROXYTYPE
, CURLPROXY_SOCKS4
);
936 #if LIBCURL_VERSION_NUM >= 0x073400
937 else if (starts_with(curl_http_proxy
, "https"))
938 curl_easy_setopt(result
,
939 CURLOPT_PROXYTYPE
, CURLPROXY_HTTPS
);
941 if (strstr(curl_http_proxy
, "://"))
942 credential_from_url(&proxy_auth
, curl_http_proxy
);
944 struct strbuf url
= STRBUF_INIT
;
945 strbuf_addf(&url
, "http://%s", curl_http_proxy
);
946 credential_from_url(&proxy_auth
, url
.buf
);
947 strbuf_release(&url
);
950 if (!proxy_auth
.host
)
951 die("Invalid proxy URL '%s'", curl_http_proxy
);
953 curl_easy_setopt(result
, CURLOPT_PROXY
, proxy_auth
.host
);
954 #if LIBCURL_VERSION_NUM >= 0x071304
955 var_override(&curl_no_proxy
, getenv("NO_PROXY"));
956 var_override(&curl_no_proxy
, getenv("no_proxy"));
957 curl_easy_setopt(result
, CURLOPT_NOPROXY
, curl_no_proxy
);
960 init_curl_proxy_auth(result
);
962 set_curl_keepalive(result
);
967 static void set_from_env(const char **var
, const char *envname
)
969 const char *val
= getenv(envname
);
974 static void protocol_http_header(void)
976 if (get_protocol_version_config() > 0) {
977 struct strbuf protocol_header
= STRBUF_INIT
;
979 strbuf_addf(&protocol_header
, GIT_PROTOCOL_HEADER
": version=%d",
980 get_protocol_version_config());
983 extra_http_headers
= curl_slist_append(extra_http_headers
,
984 protocol_header
.buf
);
985 strbuf_release(&protocol_header
);
989 void http_init(struct remote
*remote
, const char *url
, int proactive_auth
)
991 char *low_speed_limit
;
992 char *low_speed_time
;
993 char *normalized_url
;
994 struct urlmatch_config config
= { STRING_LIST_INIT_DUP
};
996 config
.section
= "http";
998 config
.collect_fn
= http_options
;
999 config
.cascade_fn
= git_default_config
;
1002 http_is_verbose
= 0;
1003 normalized_url
= url_normalize(url
, &config
.url
);
1005 git_config(urlmatch_config_entry
, &config
);
1006 free(normalized_url
);
1008 if (curl_global_init(CURL_GLOBAL_ALL
) != CURLE_OK
)
1009 die("curl_global_init failed");
1011 http_proactive_auth
= proactive_auth
;
1013 if (remote
&& remote
->http_proxy
)
1014 curl_http_proxy
= xstrdup(remote
->http_proxy
);
1017 var_override(&http_proxy_authmethod
, remote
->http_proxy_authmethod
);
1019 protocol_http_header();
1021 pragma_header
= curl_slist_append(http_copy_default_headers(),
1022 "Pragma: no-cache");
1023 no_pragma_header
= curl_slist_append(http_copy_default_headers(),
1026 #ifdef USE_CURL_MULTI
1028 char *http_max_requests
= getenv("GIT_HTTP_MAX_REQUESTS");
1029 if (http_max_requests
!= NULL
)
1030 max_requests
= atoi(http_max_requests
);
1033 curlm
= curl_multi_init();
1035 die("curl_multi_init failed");
1038 if (getenv("GIT_SSL_NO_VERIFY"))
1039 curl_ssl_verify
= 0;
1041 set_from_env(&ssl_cert
, "GIT_SSL_CERT");
1042 #if LIBCURL_VERSION_NUM >= 0x070903
1043 set_from_env(&ssl_key
, "GIT_SSL_KEY");
1045 #if LIBCURL_VERSION_NUM >= 0x070908
1046 set_from_env(&ssl_capath
, "GIT_SSL_CAPATH");
1048 set_from_env(&ssl_cainfo
, "GIT_SSL_CAINFO");
1050 set_from_env(&user_agent
, "GIT_HTTP_USER_AGENT");
1052 low_speed_limit
= getenv("GIT_HTTP_LOW_SPEED_LIMIT");
1053 if (low_speed_limit
!= NULL
)
1054 curl_low_speed_limit
= strtol(low_speed_limit
, NULL
, 10);
1055 low_speed_time
= getenv("GIT_HTTP_LOW_SPEED_TIME");
1056 if (low_speed_time
!= NULL
)
1057 curl_low_speed_time
= strtol(low_speed_time
, NULL
, 10);
1059 if (curl_ssl_verify
== -1)
1060 curl_ssl_verify
= 1;
1062 curl_session_count
= 0;
1063 #ifdef USE_CURL_MULTI
1064 if (max_requests
< 1)
1065 max_requests
= DEFAULT_MAX_REQUESTS
;
1068 if (getenv("GIT_CURL_FTP_NO_EPSV"))
1069 curl_ftp_no_epsv
= 1;
1072 credential_from_url(&http_auth
, url
);
1073 if (!ssl_cert_password_required
&&
1074 getenv("GIT_SSL_CERT_PASSWORD_PROTECTED") &&
1075 starts_with(url
, "https://"))
1076 ssl_cert_password_required
= 1;
1079 #ifndef NO_CURL_EASY_DUPHANDLE
1080 curl_default
= get_curl_handle();
1084 void http_cleanup(void)
1086 struct active_request_slot
*slot
= active_queue_head
;
1088 while (slot
!= NULL
) {
1089 struct active_request_slot
*next
= slot
->next
;
1090 if (slot
->curl
!= NULL
) {
1091 xmulti_remove_handle(slot
);
1092 curl_easy_cleanup(slot
->curl
);
1097 active_queue_head
= NULL
;
1099 #ifndef NO_CURL_EASY_DUPHANDLE
1100 curl_easy_cleanup(curl_default
);
1103 #ifdef USE_CURL_MULTI
1104 curl_multi_cleanup(curlm
);
1106 curl_global_cleanup();
1108 curl_slist_free_all(extra_http_headers
);
1109 extra_http_headers
= NULL
;
1111 curl_slist_free_all(pragma_header
);
1112 pragma_header
= NULL
;
1114 curl_slist_free_all(no_pragma_header
);
1115 no_pragma_header
= NULL
;
1117 if (curl_http_proxy
) {
1118 free((void *)curl_http_proxy
);
1119 curl_http_proxy
= NULL
;
1122 if (proxy_auth
.password
) {
1123 memset(proxy_auth
.password
, 0, strlen(proxy_auth
.password
));
1124 FREE_AND_NULL(proxy_auth
.password
);
1127 free((void *)curl_proxyuserpwd
);
1128 curl_proxyuserpwd
= NULL
;
1130 free((void *)http_proxy_authmethod
);
1131 http_proxy_authmethod
= NULL
;
1133 if (cert_auth
.password
!= NULL
) {
1134 memset(cert_auth
.password
, 0, strlen(cert_auth
.password
));
1135 FREE_AND_NULL(cert_auth
.password
);
1137 ssl_cert_password_required
= 0;
1139 FREE_AND_NULL(cached_accept_language
);
1142 struct active_request_slot
*get_active_slot(void)
1144 struct active_request_slot
*slot
= active_queue_head
;
1145 struct active_request_slot
*newslot
;
1147 #ifdef USE_CURL_MULTI
1150 /* Wait for a slot to open up if the queue is full */
1151 while (active_requests
>= max_requests
) {
1152 curl_multi_perform(curlm
, &num_transfers
);
1153 if (num_transfers
< active_requests
)
1154 process_curl_messages();
1158 while (slot
!= NULL
&& slot
->in_use
)
1162 newslot
= xmalloc(sizeof(*newslot
));
1163 newslot
->curl
= NULL
;
1164 newslot
->in_use
= 0;
1165 newslot
->next
= NULL
;
1167 slot
= active_queue_head
;
1169 active_queue_head
= newslot
;
1171 while (slot
->next
!= NULL
)
1173 slot
->next
= newslot
;
1178 if (slot
->curl
== NULL
) {
1179 #ifdef NO_CURL_EASY_DUPHANDLE
1180 slot
->curl
= get_curl_handle();
1182 slot
->curl
= curl_easy_duphandle(curl_default
);
1184 curl_session_count
++;
1189 slot
->results
= NULL
;
1190 slot
->finished
= NULL
;
1191 slot
->callback_data
= NULL
;
1192 slot
->callback_func
= NULL
;
1193 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEFILE
, curl_cookie_file
);
1194 if (curl_save_cookies
)
1195 curl_easy_setopt(slot
->curl
, CURLOPT_COOKIEJAR
, curl_cookie_file
);
1196 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, pragma_header
);
1197 curl_easy_setopt(slot
->curl
, CURLOPT_ERRORBUFFER
, curl_errorstr
);
1198 curl_easy_setopt(slot
->curl
, CURLOPT_CUSTOMREQUEST
, NULL
);
1199 curl_easy_setopt(slot
->curl
, CURLOPT_READFUNCTION
, NULL
);
1200 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
, NULL
);
1201 curl_easy_setopt(slot
->curl
, CURLOPT_POSTFIELDS
, NULL
);
1202 curl_easy_setopt(slot
->curl
, CURLOPT_UPLOAD
, 0);
1203 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1204 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 1);
1205 curl_easy_setopt(slot
->curl
, CURLOPT_RANGE
, NULL
);
1208 * Default following to off unless "ALWAYS" is configured; this gives
1209 * callers a sane starting point, and they can tweak for individual
1210 * HTTP_FOLLOW_* cases themselves.
1212 if (http_follow_config
== HTTP_FOLLOW_ALWAYS
)
1213 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1215 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 0);
1217 #if LIBCURL_VERSION_NUM >= 0x070a08
1218 curl_easy_setopt(slot
->curl
, CURLOPT_IPRESOLVE
, git_curl_ipresolve
);
1220 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1221 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPAUTH
, http_auth_methods
);
1223 if (http_auth
.password
|| curl_empty_auth_enabled())
1224 init_curl_http_auth(slot
->curl
);
1229 int start_active_slot(struct active_request_slot
*slot
)
1231 #ifdef USE_CURL_MULTI
1232 CURLMcode curlm_result
= curl_multi_add_handle(curlm
, slot
->curl
);
1235 if (curlm_result
!= CURLM_OK
&&
1236 curlm_result
!= CURLM_CALL_MULTI_PERFORM
) {
1237 warning("curl_multi_add_handle failed: %s",
1238 curl_multi_strerror(curlm_result
));
1245 * We know there must be something to do, since we just added
1248 curl_multi_perform(curlm
, &num_transfers
);
1253 #ifdef USE_CURL_MULTI
1256 int (*fill
)(void *);
1257 struct fill_chain
*next
;
1260 static struct fill_chain
*fill_cfg
;
1262 void add_fill_function(void *data
, int (*fill
)(void *))
1264 struct fill_chain
*new = xmalloc(sizeof(*new));
1265 struct fill_chain
**linkp
= &fill_cfg
;
1270 linkp
= &(*linkp
)->next
;
1274 void fill_active_slots(void)
1276 struct active_request_slot
*slot
= active_queue_head
;
1278 while (active_requests
< max_requests
) {
1279 struct fill_chain
*fill
;
1280 for (fill
= fill_cfg
; fill
; fill
= fill
->next
)
1281 if (fill
->fill(fill
->data
))
1288 while (slot
!= NULL
) {
1289 if (!slot
->in_use
&& slot
->curl
!= NULL
1290 && curl_session_count
> min_curl_sessions
) {
1291 curl_easy_cleanup(slot
->curl
);
1293 curl_session_count
--;
1299 void step_active_slots(void)
1302 CURLMcode curlm_result
;
1305 curlm_result
= curl_multi_perform(curlm
, &num_transfers
);
1306 } while (curlm_result
== CURLM_CALL_MULTI_PERFORM
);
1307 if (num_transfers
< active_requests
) {
1308 process_curl_messages();
1309 fill_active_slots();
1314 void run_active_slot(struct active_request_slot
*slot
)
1316 #ifdef USE_CURL_MULTI
1321 struct timeval select_timeout
;
1324 slot
->finished
= &finished
;
1326 step_active_slots();
1329 #if LIBCURL_VERSION_NUM >= 0x070f04
1331 curl_multi_timeout(curlm
, &curl_timeout
);
1332 if (curl_timeout
== 0) {
1334 } else if (curl_timeout
== -1) {
1335 select_timeout
.tv_sec
= 0;
1336 select_timeout
.tv_usec
= 50000;
1338 select_timeout
.tv_sec
= curl_timeout
/ 1000;
1339 select_timeout
.tv_usec
= (curl_timeout
% 1000) * 1000;
1342 select_timeout
.tv_sec
= 0;
1343 select_timeout
.tv_usec
= 50000;
1350 curl_multi_fdset(curlm
, &readfds
, &writefds
, &excfds
, &max_fd
);
1353 * It can happen that curl_multi_timeout returns a pathologically
1354 * long timeout when curl_multi_fdset returns no file descriptors
1355 * to read. See commit message for more details.
1358 (select_timeout
.tv_sec
> 0 ||
1359 select_timeout
.tv_usec
> 50000)) {
1360 select_timeout
.tv_sec
= 0;
1361 select_timeout
.tv_usec
= 50000;
1364 select(max_fd
+1, &readfds
, &writefds
, &excfds
, &select_timeout
);
1368 while (slot
->in_use
) {
1369 slot
->curl_result
= curl_easy_perform(slot
->curl
);
1370 finish_active_slot(slot
);
1375 static void release_active_slot(struct active_request_slot
*slot
)
1377 closedown_active_slot(slot
);
1379 xmulti_remove_handle(slot
);
1380 if (curl_session_count
> min_curl_sessions
) {
1381 curl_easy_cleanup(slot
->curl
);
1383 curl_session_count
--;
1386 #ifdef USE_CURL_MULTI
1387 fill_active_slots();
1391 void finish_all_active_slots(void)
1393 struct active_request_slot
*slot
= active_queue_head
;
1395 while (slot
!= NULL
)
1397 run_active_slot(slot
);
1398 slot
= active_queue_head
;
1404 /* Helpers for modifying and creating URLs */
1405 static inline int needs_quote(int ch
)
1407 if (((ch
>= 'A') && (ch
<= 'Z'))
1408 || ((ch
>= 'a') && (ch
<= 'z'))
1409 || ((ch
>= '0') && (ch
<= '9'))
1417 static char *quote_ref_url(const char *base
, const char *ref
)
1419 struct strbuf buf
= STRBUF_INIT
;
1423 end_url_with_slash(&buf
, base
);
1425 for (cp
= ref
; (ch
= *cp
) != 0; cp
++)
1426 if (needs_quote(ch
))
1427 strbuf_addf(&buf
, "%%%02x", ch
);
1429 strbuf_addch(&buf
, *cp
);
1431 return strbuf_detach(&buf
, NULL
);
1434 void append_remote_object_url(struct strbuf
*buf
, const char *url
,
1436 int only_two_digit_prefix
)
1438 end_url_with_slash(buf
, url
);
1440 strbuf_addf(buf
, "objects/%.*s/", 2, hex
);
1441 if (!only_two_digit_prefix
)
1442 strbuf_addstr(buf
, hex
+ 2);
1445 char *get_remote_object_url(const char *url
, const char *hex
,
1446 int only_two_digit_prefix
)
1448 struct strbuf buf
= STRBUF_INIT
;
1449 append_remote_object_url(&buf
, url
, hex
, only_two_digit_prefix
);
1450 return strbuf_detach(&buf
, NULL
);
1453 static int handle_curl_result(struct slot_results
*results
)
1456 * If we see a failing http code with CURLE_OK, we have turned off
1457 * FAILONERROR (to keep the server's custom error response), and should
1458 * translate the code into failure here.
1460 * Likewise, if we see a redirect (30x code), that means we turned off
1461 * redirect-following, and we should treat the result as an error.
1463 if (results
->curl_result
== CURLE_OK
&&
1464 results
->http_code
>= 300) {
1465 results
->curl_result
= CURLE_HTTP_RETURNED_ERROR
;
1467 * Normally curl will already have put the "reason phrase"
1468 * from the server into curl_errorstr; unfortunately without
1469 * FAILONERROR it is lost, so we can give only the numeric
1472 xsnprintf(curl_errorstr
, sizeof(curl_errorstr
),
1473 "The requested URL returned error: %ld",
1474 results
->http_code
);
1477 if (results
->curl_result
== CURLE_OK
) {
1478 credential_approve(&http_auth
);
1479 if (proxy_auth
.password
)
1480 credential_approve(&proxy_auth
);
1482 } else if (missing_target(results
))
1483 return HTTP_MISSING_TARGET
;
1484 else if (results
->http_code
== 401) {
1485 if (http_auth
.username
&& http_auth
.password
) {
1486 credential_reject(&http_auth
);
1489 #ifdef LIBCURL_CAN_HANDLE_AUTH_ANY
1490 http_auth_methods
&= ~CURLAUTH_GSSNEGOTIATE
;
1491 if (results
->auth_avail
) {
1492 http_auth_methods
&= results
->auth_avail
;
1493 http_auth_methods_restricted
= 1;
1499 if (results
->http_connectcode
== 407)
1500 credential_reject(&proxy_auth
);
1501 #if LIBCURL_VERSION_NUM >= 0x070c00
1502 if (!curl_errorstr
[0])
1503 strlcpy(curl_errorstr
,
1504 curl_easy_strerror(results
->curl_result
),
1505 sizeof(curl_errorstr
));
1511 int run_one_slot(struct active_request_slot
*slot
,
1512 struct slot_results
*results
)
1514 slot
->results
= results
;
1515 if (!start_active_slot(slot
)) {
1516 xsnprintf(curl_errorstr
, sizeof(curl_errorstr
),
1517 "failed to start HTTP request");
1518 return HTTP_START_FAILED
;
1521 run_active_slot(slot
);
1522 return handle_curl_result(results
);
1525 struct curl_slist
*http_copy_default_headers(void)
1527 struct curl_slist
*headers
= NULL
, *h
;
1529 for (h
= extra_http_headers
; h
; h
= h
->next
)
1530 headers
= curl_slist_append(headers
, h
->data
);
1535 static CURLcode
curlinfo_strbuf(CURL
*curl
, CURLINFO info
, struct strbuf
*buf
)
1541 ret
= curl_easy_getinfo(curl
, info
, &ptr
);
1543 strbuf_addstr(buf
, ptr
);
1548 * Check for and extract a content-type parameter. "raw"
1549 * should be positioned at the start of the potential
1550 * parameter, with any whitespace already removed.
1552 * "name" is the name of the parameter. The value is appended
1555 static int extract_param(const char *raw
, const char *name
,
1558 size_t len
= strlen(name
);
1560 if (strncasecmp(raw
, name
, len
))
1568 while (*raw
&& !isspace(*raw
) && *raw
!= ';')
1569 strbuf_addch(out
, *raw
++);
1574 * Extract a normalized version of the content type, with any
1575 * spaces suppressed, all letters lowercased, and no trailing ";"
1578 * Note that we will silently remove even invalid whitespace. For
1579 * example, "text / plain" is specifically forbidden by RFC 2616,
1580 * but "text/plain" is the only reasonable output, and this keeps
1583 * If the "charset" argument is not NULL, store the value of any
1584 * charset parameter there.
1587 * "TEXT/PLAIN; charset=utf-8" -> "text/plain", "utf-8"
1588 * "text / plain" -> "text/plain"
1590 static void extract_content_type(struct strbuf
*raw
, struct strbuf
*type
,
1591 struct strbuf
*charset
)
1596 strbuf_grow(type
, raw
->len
);
1597 for (p
= raw
->buf
; *p
; p
++) {
1604 strbuf_addch(type
, tolower(*p
));
1610 strbuf_reset(charset
);
1612 while (isspace(*p
) || *p
== ';')
1614 if (!extract_param(p
, "charset", charset
))
1616 while (*p
&& !isspace(*p
))
1620 if (!charset
->len
&& starts_with(type
->buf
, "text/"))
1621 strbuf_addstr(charset
, "ISO-8859-1");
1624 static void write_accept_language(struct strbuf
*buf
)
1627 * MAX_DECIMAL_PLACES must not be larger than 3. If it is larger than
1628 * that, q-value will be smaller than 0.001, the minimum q-value the
1629 * HTTP specification allows. See
1630 * http://tools.ietf.org/html/rfc7231#section-5.3.1 for q-value.
1632 const int MAX_DECIMAL_PLACES
= 3;
1633 const int MAX_LANGUAGE_TAGS
= 1000;
1634 const int MAX_ACCEPT_LANGUAGE_HEADER_SIZE
= 4000;
1635 char **language_tags
= NULL
;
1637 const char *s
= get_preferred_languages();
1639 struct strbuf tag
= STRBUF_INIT
;
1641 /* Don't add Accept-Language header if no language is preferred. */
1646 * Split the colon-separated string of preferred languages into
1647 * language_tags array.
1650 /* collect language tag */
1651 for (; *s
&& (isalnum(*s
) || *s
== '_'); s
++)
1652 strbuf_addch(&tag
, *s
== '_' ? '-' : *s
);
1654 /* skip .codeset, @modifier and any other unnecessary parts */
1655 while (*s
&& *s
!= ':')
1660 REALLOC_ARRAY(language_tags
, num_langs
);
1661 language_tags
[num_langs
- 1] = strbuf_detach(&tag
, NULL
);
1662 if (num_langs
>= MAX_LANGUAGE_TAGS
- 1) /* -1 for '*' */
1667 /* write Accept-Language header into buf */
1669 int last_buf_len
= 0;
1675 REALLOC_ARRAY(language_tags
, num_langs
+ 1);
1676 language_tags
[num_langs
++] = "*"; /* it's OK; this won't be freed */
1678 /* compute decimal_places */
1679 for (max_q
= 1, decimal_places
= 0;
1680 max_q
< num_langs
&& decimal_places
<= MAX_DECIMAL_PLACES
;
1681 decimal_places
++, max_q
*= 10)
1684 xsnprintf(q_format
, sizeof(q_format
), ";q=0.%%0%dd", decimal_places
);
1686 strbuf_addstr(buf
, "Accept-Language: ");
1688 for (i
= 0; i
< num_langs
; i
++) {
1690 strbuf_addstr(buf
, ", ");
1692 strbuf_addstr(buf
, language_tags
[i
]);
1695 strbuf_addf(buf
, q_format
, max_q
- i
);
1697 if (buf
->len
> MAX_ACCEPT_LANGUAGE_HEADER_SIZE
) {
1698 strbuf_remove(buf
, last_buf_len
, buf
->len
- last_buf_len
);
1702 last_buf_len
= buf
->len
;
1706 /* free language tags -- last one is a static '*' */
1707 for (i
= 0; i
< num_langs
- 1; i
++)
1708 free(language_tags
[i
]);
1709 free(language_tags
);
1713 * Get an Accept-Language header which indicates user's preferred languages.
1717 * LANGUAGE=ko:en -> "Accept-Language: ko, en; q=0.9, *; q=0.1"
1718 * LANGUAGE=ko_KR.UTF-8:sr@latin -> "Accept-Language: ko-KR, sr; q=0.9, *; q=0.1"
1719 * LANGUAGE=ko LANG=en_US.UTF-8 -> "Accept-Language: ko, *; q=0.1"
1720 * LANGUAGE= LANG=en_US.UTF-8 -> "Accept-Language: en-US, *; q=0.1"
1721 * LANGUAGE= LANG=C -> ""
1723 static const char *get_accept_language(void)
1725 if (!cached_accept_language
) {
1726 struct strbuf buf
= STRBUF_INIT
;
1727 write_accept_language(&buf
);
1729 cached_accept_language
= strbuf_detach(&buf
, NULL
);
1732 return cached_accept_language
;
1735 static void http_opt_request_remainder(CURL
*curl
, off_t pos
)
1738 xsnprintf(buf
, sizeof(buf
), "%"PRIuMAX
"-", (uintmax_t)pos
);
1739 curl_easy_setopt(curl
, CURLOPT_RANGE
, buf
);
1742 /* http_request() targets */
1743 #define HTTP_REQUEST_STRBUF 0
1744 #define HTTP_REQUEST_FILE 1
1746 static int http_request(const char *url
,
1747 void *result
, int target
,
1748 const struct http_get_options
*options
)
1750 struct active_request_slot
*slot
;
1751 struct slot_results results
;
1752 struct curl_slist
*headers
= http_copy_default_headers();
1753 struct strbuf buf
= STRBUF_INIT
;
1754 const char *accept_language
;
1757 slot
= get_active_slot();
1758 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPGET
, 1);
1760 if (result
== NULL
) {
1761 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 1);
1763 curl_easy_setopt(slot
->curl
, CURLOPT_NOBODY
, 0);
1764 curl_easy_setopt(slot
->curl
, CURLOPT_FILE
, result
);
1766 if (target
== HTTP_REQUEST_FILE
) {
1767 off_t posn
= ftello(result
);
1768 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1771 http_opt_request_remainder(slot
->curl
, posn
);
1773 curl_easy_setopt(slot
->curl
, CURLOPT_WRITEFUNCTION
,
1777 accept_language
= get_accept_language();
1779 if (accept_language
)
1780 headers
= curl_slist_append(headers
, accept_language
);
1782 strbuf_addstr(&buf
, "Pragma:");
1783 if (options
&& options
->no_cache
)
1784 strbuf_addstr(&buf
, " no-cache");
1785 if (options
&& options
->keep_error
)
1786 curl_easy_setopt(slot
->curl
, CURLOPT_FAILONERROR
, 0);
1787 if (options
&& options
->initial_request
&&
1788 http_follow_config
== HTTP_FOLLOW_INITIAL
)
1789 curl_easy_setopt(slot
->curl
, CURLOPT_FOLLOWLOCATION
, 1);
1791 headers
= curl_slist_append(headers
, buf
.buf
);
1793 curl_easy_setopt(slot
->curl
, CURLOPT_URL
, url
);
1794 curl_easy_setopt(slot
->curl
, CURLOPT_HTTPHEADER
, headers
);
1795 curl_easy_setopt(slot
->curl
, CURLOPT_ENCODING
, "gzip");
1797 ret
= run_one_slot(slot
, &results
);
1799 if (options
&& options
->content_type
) {
1800 struct strbuf raw
= STRBUF_INIT
;
1801 curlinfo_strbuf(slot
->curl
, CURLINFO_CONTENT_TYPE
, &raw
);
1802 extract_content_type(&raw
, options
->content_type
,
1804 strbuf_release(&raw
);
1807 if (options
&& options
->effective_url
)
1808 curlinfo_strbuf(slot
->curl
, CURLINFO_EFFECTIVE_URL
,
1809 options
->effective_url
);
1811 curl_slist_free_all(headers
);
1812 strbuf_release(&buf
);
1818 * Update the "base" url to a more appropriate value, as deduced by
1819 * redirects seen when requesting a URL starting with "url".
1821 * The "asked" parameter is a URL that we asked curl to access, and must begin
1824 * The "got" parameter is the URL that curl reported to us as where we ended
1827 * Returns 1 if we updated the base url, 0 otherwise.
1829 * Our basic strategy is to compare "base" and "asked" to find the bits
1830 * specific to our request. We then strip those bits off of "got" to yield the
1831 * new base. So for example, if our base is "http://example.com/foo.git",
1832 * and we ask for "http://example.com/foo.git/info/refs", we might end up
1833 * with "https://other.example.com/foo.git/info/refs". We would want the
1834 * new URL to become "https://other.example.com/foo.git".
1836 * Note that this assumes a sane redirect scheme. It's entirely possible
1837 * in the example above to end up at a URL that does not even end in
1838 * "info/refs". In such a case we die. There's not much we can do, such a
1839 * scheme is unlikely to represent a real git repository, and failing to
1840 * rewrite the base opens options for malicious redirects to do funny things.
1842 static int update_url_from_redirect(struct strbuf
*base
,
1844 const struct strbuf
*got
)
1849 if (!strcmp(asked
, got
->buf
))
1852 if (!skip_prefix(asked
, base
->buf
, &tail
))
1853 die("BUG: update_url_from_redirect: %s is not a superset of %s",
1857 if (!strip_suffix_mem(got
->buf
, &new_len
, tail
))
1858 die(_("unable to update url base from redirection:\n"
1864 strbuf_add(base
, got
->buf
, new_len
);
1869 static int http_request_reauth(const char *url
,
1870 void *result
, int target
,
1871 struct http_get_options
*options
)
1873 int ret
= http_request(url
, result
, target
, options
);
1875 if (ret
!= HTTP_OK
&& ret
!= HTTP_REAUTH
)
1878 if (options
&& options
->effective_url
&& options
->base_url
) {
1879 if (update_url_from_redirect(options
->base_url
,
1880 url
, options
->effective_url
)) {
1881 credential_from_url(&http_auth
, options
->base_url
->buf
);
1882 url
= options
->effective_url
->buf
;
1886 if (ret
!= HTTP_REAUTH
)
1890 * If we are using KEEP_ERROR, the previous request may have
1891 * put cruft into our output stream; we should clear it out before
1892 * making our next request. We only know how to do this for
1893 * the strbuf case, but that is enough to satisfy current callers.
1895 if (options
&& options
->keep_error
) {
1897 case HTTP_REQUEST_STRBUF
:
1898 strbuf_reset(result
);
1901 die("BUG: HTTP_KEEP_ERROR is only supported with strbufs");
1905 credential_fill(&http_auth
);
1907 return http_request(url
, result
, target
, options
);
1910 int http_get_strbuf(const char *url
,
1911 struct strbuf
*result
,
1912 struct http_get_options
*options
)
1914 return http_request_reauth(url
, result
, HTTP_REQUEST_STRBUF
, options
);
1918 * Downloads a URL and stores the result in the given file.
1920 * If a previous interrupted download is detected (i.e. a previous temporary
1921 * file is still around) the download is resumed.
1923 static int http_get_file(const char *url
, const char *filename
,
1924 struct http_get_options
*options
)
1927 struct strbuf tmpfile
= STRBUF_INIT
;
1930 strbuf_addf(&tmpfile
, "%s.temp", filename
);
1931 result
= fopen(tmpfile
.buf
, "a");
1933 error("Unable to open local file %s", tmpfile
.buf
);
1938 ret
= http_request_reauth(url
, result
, HTTP_REQUEST_FILE
, options
);
1941 if (ret
== HTTP_OK
&& finalize_object_file(tmpfile
.buf
, filename
))
1944 strbuf_release(&tmpfile
);
1948 int http_fetch_ref(const char *base
, struct ref
*ref
)
1950 struct http_get_options options
= {0};
1952 struct strbuf buffer
= STRBUF_INIT
;
1955 options
.no_cache
= 1;
1957 url
= quote_ref_url(base
, ref
->name
);
1958 if (http_get_strbuf(url
, &buffer
, &options
) == HTTP_OK
) {
1959 strbuf_rtrim(&buffer
);
1960 if (buffer
.len
== 40)
1961 ret
= get_oid_hex(buffer
.buf
, &ref
->old_oid
);
1962 else if (starts_with(buffer
.buf
, "ref: ")) {
1963 ref
->symref
= xstrdup(buffer
.buf
+ 5);
1968 strbuf_release(&buffer
);
1973 /* Helpers for fetching packs */
1974 static char *fetch_pack_index(unsigned char *sha1
, const char *base_url
)
1977 struct strbuf buf
= STRBUF_INIT
;
1979 if (http_is_verbose
)
1980 fprintf(stderr
, "Getting index for pack %s\n", sha1_to_hex(sha1
));
1982 end_url_with_slash(&buf
, base_url
);
1983 strbuf_addf(&buf
, "objects/pack/pack-%s.idx", sha1_to_hex(sha1
));
1984 url
= strbuf_detach(&buf
, NULL
);
1986 strbuf_addf(&buf
, "%s.temp", sha1_pack_index_name(sha1
));
1987 tmp
= strbuf_detach(&buf
, NULL
);
1989 if (http_get_file(url
, tmp
, NULL
) != HTTP_OK
) {
1990 error("Unable to get pack index %s", url
);
1998 static int fetch_and_setup_pack_index(struct packed_git
**packs_head
,
1999 unsigned char *sha1
, const char *base_url
)
2001 struct packed_git
*new_pack
;
2002 char *tmp_idx
= NULL
;
2005 if (has_pack_index(sha1
)) {
2006 new_pack
= parse_pack_index(sha1
, sha1_pack_index_name(sha1
));
2008 return -1; /* parse_pack_index() already issued error message */
2012 tmp_idx
= fetch_pack_index(sha1
, base_url
);
2016 new_pack
= parse_pack_index(sha1
, tmp_idx
);
2021 return -1; /* parse_pack_index() already issued error message */
2024 ret
= verify_pack_index(new_pack
);
2026 close_pack_index(new_pack
);
2027 ret
= finalize_object_file(tmp_idx
, sha1_pack_index_name(sha1
));
2034 new_pack
->next
= *packs_head
;
2035 *packs_head
= new_pack
;
2039 int http_get_info_packs(const char *base_url
, struct packed_git
**packs_head
)
2041 struct http_get_options options
= {0};
2044 struct strbuf buf
= STRBUF_INIT
;
2045 unsigned char sha1
[20];
2047 end_url_with_slash(&buf
, base_url
);
2048 strbuf_addstr(&buf
, "objects/info/packs");
2049 url
= strbuf_detach(&buf
, NULL
);
2051 options
.no_cache
= 1;
2052 ret
= http_get_strbuf(url
, &buf
, &options
);
2057 while (i
< buf
.len
) {
2061 if (i
+ 52 <= buf
.len
&&
2062 starts_with(data
+ i
, " pack-") &&
2063 starts_with(data
+ i
+ 46, ".pack\n")) {
2064 get_sha1_hex(data
+ i
+ 6, sha1
);
2065 fetch_and_setup_pack_index(packs_head
, sha1
,
2071 while (i
< buf
.len
&& data
[i
] != '\n')
2082 void release_http_pack_request(struct http_pack_request
*preq
)
2084 if (preq
->packfile
!= NULL
) {
2085 fclose(preq
->packfile
);
2086 preq
->packfile
= NULL
;
2093 int finish_http_pack_request(struct http_pack_request
*preq
)
2095 struct packed_git
**lst
;
2096 struct packed_git
*p
= preq
->target
;
2099 struct child_process ip
= CHILD_PROCESS_INIT
;
2101 close_pack_index(p
);
2103 fclose(preq
->packfile
);
2104 preq
->packfile
= NULL
;
2108 lst
= &((*lst
)->next
);
2109 *lst
= (*lst
)->next
;
2111 if (!strip_suffix(preq
->tmpfile
, ".pack.temp", &len
))
2112 die("BUG: pack tmpfile does not end in .pack.temp?");
2113 tmp_idx
= xstrfmt("%.*s.idx.temp", (int)len
, preq
->tmpfile
);
2115 argv_array_push(&ip
.args
, "index-pack");
2116 argv_array_pushl(&ip
.args
, "-o", tmp_idx
, NULL
);
2117 argv_array_push(&ip
.args
, preq
->tmpfile
);
2122 if (run_command(&ip
)) {
2123 unlink(preq
->tmpfile
);
2129 unlink(sha1_pack_index_name(p
->sha1
));
2131 if (finalize_object_file(preq
->tmpfile
, sha1_pack_name(p
->sha1
))
2132 || finalize_object_file(tmp_idx
, sha1_pack_index_name(p
->sha1
))) {
2137 install_packed_git(p
);
2142 struct http_pack_request
*new_http_pack_request(
2143 struct packed_git
*target
, const char *base_url
)
2145 off_t prev_posn
= 0;
2146 struct strbuf buf
= STRBUF_INIT
;
2147 struct http_pack_request
*preq
;
2149 preq
= xcalloc(1, sizeof(*preq
));
2150 preq
->target
= target
;
2152 end_url_with_slash(&buf
, base_url
);
2153 strbuf_addf(&buf
, "objects/pack/pack-%s.pack",
2154 sha1_to_hex(target
->sha1
));
2155 preq
->url
= strbuf_detach(&buf
, NULL
);
2157 snprintf(preq
->tmpfile
, sizeof(preq
->tmpfile
), "%s.temp",
2158 sha1_pack_name(target
->sha1
));
2159 preq
->packfile
= fopen(preq
->tmpfile
, "a");
2160 if (!preq
->packfile
) {
2161 error("Unable to open local file %s for pack",
2166 preq
->slot
= get_active_slot();
2167 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_FILE
, preq
->packfile
);
2168 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite
);
2169 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_URL
, preq
->url
);
2170 curl_easy_setopt(preq
->slot
->curl
, CURLOPT_HTTPHEADER
,
2174 * If there is data present from a previous transfer attempt,
2175 * resume where it left off
2177 prev_posn
= ftello(preq
->packfile
);
2179 if (http_is_verbose
)
2181 "Resuming fetch of pack %s at byte %"PRIuMAX
"\n",
2182 sha1_to_hex(target
->sha1
), (uintmax_t)prev_posn
);
2183 http_opt_request_remainder(preq
->slot
->curl
, prev_posn
);
2194 /* Helpers for fetching objects (loose) */
2195 static size_t fwrite_sha1_file(char *ptr
, size_t eltsize
, size_t nmemb
,
2198 unsigned char expn
[4096];
2199 size_t size
= eltsize
* nmemb
;
2201 struct http_object_request
*freq
= data
;
2202 struct active_request_slot
*slot
= freq
->slot
;
2205 CURLcode c
= curl_easy_getinfo(slot
->curl
, CURLINFO_HTTP_CODE
,
2208 die("BUG: curl_easy_getinfo for HTTP code failed: %s",
2209 curl_easy_strerror(c
));
2210 if (slot
->http_code
>= 300)
2215 ssize_t retval
= xwrite(freq
->localfile
,
2216 (char *) ptr
+ posn
, size
- posn
);
2220 } while (posn
< size
);
2222 freq
->stream
.avail_in
= size
;
2223 freq
->stream
.next_in
= (void *)ptr
;
2225 freq
->stream
.next_out
= expn
;
2226 freq
->stream
.avail_out
= sizeof(expn
);
2227 freq
->zret
= git_inflate(&freq
->stream
, Z_SYNC_FLUSH
);
2228 git_SHA1_Update(&freq
->c
, expn
,
2229 sizeof(expn
) - freq
->stream
.avail_out
);
2230 } while (freq
->stream
.avail_in
&& freq
->zret
== Z_OK
);
2234 struct http_object_request
*new_http_object_request(const char *base_url
,
2235 unsigned char *sha1
)
2237 char *hex
= sha1_to_hex(sha1
);
2238 struct strbuf filename
= STRBUF_INIT
;
2239 char prevfile
[PATH_MAX
];
2241 char prev_buf
[PREV_BUF_SIZE
];
2242 ssize_t prev_read
= 0;
2243 off_t prev_posn
= 0;
2244 struct http_object_request
*freq
;
2246 freq
= xcalloc(1, sizeof(*freq
));
2247 hashcpy(freq
->sha1
, sha1
);
2248 freq
->localfile
= -1;
2250 sha1_file_name(the_repository
, &filename
, sha1
);
2251 snprintf(freq
->tmpfile
, sizeof(freq
->tmpfile
),
2252 "%s.temp", filename
.buf
);
2254 snprintf(prevfile
, sizeof(prevfile
), "%s.prev", filename
.buf
);
2255 unlink_or_warn(prevfile
);
2256 rename(freq
->tmpfile
, prevfile
);
2257 unlink_or_warn(freq
->tmpfile
);
2258 strbuf_release(&filename
);
2260 if (freq
->localfile
!= -1)
2261 error("fd leakage in start: %d", freq
->localfile
);
2262 freq
->localfile
= open(freq
->tmpfile
,
2263 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2265 * This could have failed due to the "lazy directory creation";
2266 * try to mkdir the last path component.
2268 if (freq
->localfile
< 0 && errno
== ENOENT
) {
2269 char *dir
= strrchr(freq
->tmpfile
, '/');
2272 mkdir(freq
->tmpfile
, 0777);
2275 freq
->localfile
= open(freq
->tmpfile
,
2276 O_WRONLY
| O_CREAT
| O_EXCL
, 0666);
2279 if (freq
->localfile
< 0) {
2280 error_errno("Couldn't create temporary file %s", freq
->tmpfile
);
2284 git_inflate_init(&freq
->stream
);
2286 git_SHA1_Init(&freq
->c
);
2288 freq
->url
= get_remote_object_url(base_url
, hex
, 0);
2291 * If a previous temp file is present, process what was already
2294 prevlocal
= open(prevfile
, O_RDONLY
);
2295 if (prevlocal
!= -1) {
2297 prev_read
= xread(prevlocal
, prev_buf
, PREV_BUF_SIZE
);
2299 if (fwrite_sha1_file(prev_buf
,
2302 freq
) == prev_read
) {
2303 prev_posn
+= prev_read
;
2308 } while (prev_read
> 0);
2311 unlink_or_warn(prevfile
);
2314 * Reset inflate/SHA1 if there was an error reading the previous temp
2315 * file; also rewind to the beginning of the local file.
2317 if (prev_read
== -1) {
2318 memset(&freq
->stream
, 0, sizeof(freq
->stream
));
2319 git_inflate_init(&freq
->stream
);
2320 git_SHA1_Init(&freq
->c
);
2323 lseek(freq
->localfile
, 0, SEEK_SET
);
2324 if (ftruncate(freq
->localfile
, 0) < 0) {
2325 error_errno("Couldn't truncate temporary file %s",
2332 freq
->slot
= get_active_slot();
2334 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FILE
, freq
);
2335 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_FAILONERROR
, 0);
2336 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_WRITEFUNCTION
, fwrite_sha1_file
);
2337 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_ERRORBUFFER
, freq
->errorstr
);
2338 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_URL
, freq
->url
);
2339 curl_easy_setopt(freq
->slot
->curl
, CURLOPT_HTTPHEADER
, no_pragma_header
);
2342 * If we have successfully processed data from a previous fetch
2343 * attempt, only fetch the data we don't already have.
2346 if (http_is_verbose
)
2348 "Resuming fetch of object %s at byte %"PRIuMAX
"\n",
2349 hex
, (uintmax_t)prev_posn
);
2350 http_opt_request_remainder(freq
->slot
->curl
, prev_posn
);
2361 void process_http_object_request(struct http_object_request
*freq
)
2363 if (freq
->slot
== NULL
)
2365 freq
->curl_result
= freq
->slot
->curl_result
;
2366 freq
->http_code
= freq
->slot
->http_code
;
2370 int finish_http_object_request(struct http_object_request
*freq
)
2373 struct strbuf filename
= STRBUF_INIT
;
2375 close(freq
->localfile
);
2376 freq
->localfile
= -1;
2378 process_http_object_request(freq
);
2380 if (freq
->http_code
== 416) {
2381 warning("requested range invalid; we may already have all the data.");
2382 } else if (freq
->curl_result
!= CURLE_OK
) {
2383 if (stat(freq
->tmpfile
, &st
) == 0)
2384 if (st
.st_size
== 0)
2385 unlink_or_warn(freq
->tmpfile
);
2389 git_inflate_end(&freq
->stream
);
2390 git_SHA1_Final(freq
->real_sha1
, &freq
->c
);
2391 if (freq
->zret
!= Z_STREAM_END
) {
2392 unlink_or_warn(freq
->tmpfile
);
2395 if (hashcmp(freq
->sha1
, freq
->real_sha1
)) {
2396 unlink_or_warn(freq
->tmpfile
);
2399 sha1_file_name(the_repository
, &filename
, freq
->sha1
);
2400 freq
->rename
= finalize_object_file(freq
->tmpfile
, filename
.buf
);
2401 strbuf_release(&filename
);
2403 return freq
->rename
;
2406 void abort_http_object_request(struct http_object_request
*freq
)
2408 unlink_or_warn(freq
->tmpfile
);
2410 release_http_object_request(freq
);
2413 void release_http_object_request(struct http_object_request
*freq
)
2415 if (freq
->localfile
!= -1) {
2416 close(freq
->localfile
);
2417 freq
->localfile
= -1;
2419 if (freq
->url
!= NULL
) {
2420 FREE_AND_NULL(freq
->url
);
2422 if (freq
->slot
!= NULL
) {
2423 freq
->slot
->callback_func
= NULL
;
2424 freq
->slot
->callback_data
= NULL
;
2425 release_active_slot(freq
->slot
);