5 * DEBUG: section 85 Client-side Request Routines
6 * AUTHOR: Robert Collins (Originally Duane Wessels in client_side.c)
8 * SQUID Web Proxy Cache http://www.squid-cache.org/
9 * ----------------------------------------------------------
11 * Squid is the result of efforts by numerous individuals from
12 * the Internet community; see the CONTRIBUTORS file for full
13 * details. Many organizations have provided support for Squid's
14 * development; see the SPONSORS file for full details. Squid is
15 * Copyrighted (C) 2001 by the Regents of the University of
16 * California; see the COPYRIGHT file for full details. Squid
17 * incorporates software developed and/or copyrighted by other
18 * sources; see the CREDITS file for full details.
20 * This program is free software; you can redistribute it and/or modify
21 * it under the terms of the GNU General Public License as published by
22 * the Free Software Foundation; either version 2 of the License, or
23 * (at your option) any later version.
25 * This program is distributed in the hope that it will be useful,
26 * but WITHOUT ANY WARRANTY; without even the implied warranty of
27 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
28 * GNU General Public License for more details.
30 * You should have received a copy of the GNU General Public License
31 * along with this program; if not, write to the Free Software
32 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
38 * General logic of request processing:
40 * We run a series of tests to determine if access will be permitted, and to do
41 * any redirection. Then we call into the result clientStream to retrieve data.
42 * From that point on it's up to reply management.
46 #include "acl/FilledChecklist.h"
47 #include "acl/Gadgets.h"
49 #include "adaptation/AccessCheck.h"
50 #include "adaptation/Iterator.h"
51 #include "adaptation/Service.h"
53 #include "adaptation/icap/History.h"
56 #include "auth/UserRequest.h"
57 #include "clientStream.h"
58 #include "client_side.h"
59 #include "client_side_reply.h"
60 #include "client_side_request.h"
61 #include "ClientRequestContext.h"
62 #include "compat/inet_pton.h"
64 #include "HttpReply.h"
65 #include "HttpRequest.h"
66 #include "ip/QosConfig.h"
67 #include "MemObject.h"
68 #include "ProtoPort.h"
70 #include "SquidTime.h"
75 #define comm_close comm_lingering_close
78 static const char *const crlf
= "\r\n";
80 #if FOLLOW_X_FORWARDED_FOR
82 clientFollowXForwardedForCheck(int answer
, void *data
);
83 #endif /* FOLLOW_X_FORWARDED_FOR */
85 CBDATA_CLASS_INIT(ClientRequestContext
);
88 ClientRequestContext::operator new (size_t size
)
90 assert (size
== sizeof(ClientRequestContext
));
91 CBDATA_INIT_TYPE(ClientRequestContext
);
92 ClientRequestContext
*result
= cbdataAlloc(ClientRequestContext
);
97 ClientRequestContext::operator delete (void *address
)
99 ClientRequestContext
*t
= static_cast<ClientRequestContext
*>(address
);
103 /* Local functions */
105 static void clientAccessCheckDoneWrapper(int, void *);
106 static int clientHierarchical(ClientHttpRequest
* http
);
107 static void clientInterpretRequestHeaders(ClientHttpRequest
* http
);
108 static RH clientRedirectDoneWrapper
;
109 static PF checkNoCacheDoneWrapper
;
110 extern "C" CSR clientGetMoreData
;
111 extern "C" CSS clientReplyStatus
;
112 extern "C" CSD clientReplyDetach
;
113 static void checkFailureRatio(err_type
, hier_code
);
115 ClientRequestContext::~ClientRequestContext()
118 * Release our "lock" on our parent, ClientHttpRequest, if we
123 cbdataReferenceDone(http
);
125 debugs(85,3, HERE
<< this << " ClientRequestContext destructed");
128 ClientRequestContext::ClientRequestContext(ClientHttpRequest
*anHttp
) : http(cbdataReference(anHttp
)), acl_checklist (NULL
), redirect_state (REDIRECT_NONE
)
130 http_access_done
= false;
131 redirect_done
= false;
132 no_cache_done
= false;
133 interpreted_req_hdrs
= false;
134 debugs(85,3, HERE
<< this << " ClientRequestContext constructed");
137 CBDATA_CLASS_INIT(ClientHttpRequest
);
140 ClientHttpRequest::operator new (size_t size
)
142 assert (size
== sizeof (ClientHttpRequest
));
143 CBDATA_INIT_TYPE(ClientHttpRequest
);
144 ClientHttpRequest
*result
= cbdataAlloc(ClientHttpRequest
);
149 ClientHttpRequest::operator delete (void *address
)
151 ClientHttpRequest
*t
= static_cast<ClientHttpRequest
*>(address
);
155 ClientHttpRequest::ClientHttpRequest(ConnStateData
* aConn
) :
157 AsyncJob("ClientHttpRequest"),
161 start_time
= current_time
;
163 dlinkAdd(this, &active
, &ClientActiveRequests
);
165 request_satisfaction_mode
= false;
170 * returns true if client specified that the object must come from the cache
171 * without contacting origin server
174 ClientHttpRequest::onlyIfCached()const
177 return request
->cache_control
&&
178 EBIT_TEST(request
->cache_control
->mask
, CC_ONLY_IF_CACHED
);
182 * This function is designed to serve a fairly specific purpose.
183 * Occasionally our vBNS-connected caches can talk to each other, but not
184 * the rest of the world. Here we try to detect frequent failures which
185 * make the cache unusable (e.g. DNS lookup and connect() failures). If
186 * the failure:success ratio goes above 1.0 then we go into "hit only"
187 * mode where we only return UDP_HIT or UDP_MISS_NOFETCH. Neighbors
188 * will only fetch HITs from us if they are using the ICP protocol. We
189 * stay in this mode for 5 minutes.
191 * Duane W., Sept 16, 1996
194 #define FAILURE_MODE_TIME 300
197 checkFailureRatio(err_type etype
, hier_code hcode
)
199 static double magic_factor
= 100.0;
203 if (hcode
== HIER_NONE
)
206 n_good
= magic_factor
/ (1.0 + request_failure_ratio
);
208 n_bad
= magic_factor
- n_good
;
214 case ERR_CONNECT_FAIL
:
215 case ERR_SECURE_CONNECT_FAIL
:
225 request_failure_ratio
= n_bad
/ n_good
;
227 if (hit_only_mode_until
> squid_curtime
)
230 if (request_failure_ratio
< 1.0)
233 debugs(33, 0, "Failure Ratio at "<< std::setw(4)<<
234 std::setprecision(3) << request_failure_ratio
);
236 debugs(33, 0, "Going into hit-only-mode for " <<
237 FAILURE_MODE_TIME
/ 60 << " minutes...");
239 hit_only_mode_until
= squid_curtime
+ FAILURE_MODE_TIME
;
241 request_failure_ratio
= 0.8; /* reset to something less than 1.0 */
244 ClientHttpRequest::~ClientHttpRequest()
246 debugs(33, 3, "httpRequestFree: " << uri
);
247 PROF_start(httpRequestFree
);
249 // Even though freeResources() below may destroy the request,
250 // we no longer set request->body_pipe to NULL here
251 // because we did not initiate that pipe (ConnStateData did)
253 /* the ICP check here was erroneous
254 * - StoreEntry::releaseRequest was always called if entry was valid
256 assert(logType
< LOG_TYPE_MAX
);
263 checkFailureRatio(request
->errType
, al
.hier
.code
);
268 announceInitiatorAbort(virginHeadSource
);
270 if (adaptedBodySource
!= NULL
)
271 stopConsumingFrom(adaptedBodySource
);
275 delete calloutContext
;
278 cbdataReferenceDone(conn_
);
280 /* moving to the next connection is handled by the context free */
281 dlinkDelete(&active
, &ClientActiveRequests
);
283 PROF_stop(httpRequestFree
);
287 * Create a request and kick it off
292 * TODO: Pass in the buffers to be used in the inital Read request, as they are
293 * determined by the user
296 clientBeginRequest(const HttpRequestMethod
& method
, char const *url
, CSCB
* streamcallback
,
297 CSD
* streamdetach
, ClientStreamData streamdata
, HttpHeader
const *header
,
298 char *tailbuf
, size_t taillen
)
301 ClientHttpRequest
*http
= new ClientHttpRequest(NULL
);
302 HttpRequest
*request
;
303 StoreIOBuffer tempBuffer
;
304 http
->start_time
= current_time
;
305 /* this is only used to adjust the connection offset in client_side.c */
307 tempBuffer
.length
= taillen
;
308 tempBuffer
.data
= tailbuf
;
309 /* client stream setup */
310 clientStreamInit(&http
->client_stream
, clientGetMoreData
, clientReplyDetach
,
311 clientReplyStatus
, new clientReplyContext(http
), streamcallback
,
312 streamdetach
, streamdata
, tempBuffer
);
313 /* make it visible in the 'current acctive requests list' */
315 /* internal requests only makes sense in an
316 * accelerator today. TODO: accept flags ? */
317 http
->flags
.accel
= 1;
318 /* allow size for url rewriting */
319 url_sz
= strlen(url
) + Config
.appendDomainLen
+ 5;
320 http
->uri
= (char *)xcalloc(url_sz
, 1);
321 strcpy(http
->uri
, url
);
323 if ((request
= HttpRequest::CreateFromUrlAndMethod(http
->uri
, method
)) == NULL
) {
324 debugs(85, 5, "Invalid URL: " << http
->uri
);
329 * now update the headers in request with our supplied headers. urlParse
330 * should return a blank header set, but we use Update to be sure of
334 request
->header
.update(header
, NULL
);
336 http
->log_uri
= xstrdup(urlCanonicalClean(request
));
338 /* http struct now ready */
341 * build new header list *? TODO
343 request
->flags
.accelerated
= http
->flags
.accel
;
345 request
->flags
.internalclient
= 1;
347 /* this is an internally created
348 * request, not subject to acceleration
349 * target overrides */
351 * FIXME? Do we want to detect and handle internal requests of internal
355 /* Internally created requests cannot have bodies today */
356 request
->content_length
= 0;
358 request
->client_addr
.SetNoAddr();
360 #if FOLLOW_X_FORWARDED_FOR
361 request
->indirect_client_addr
.SetNoAddr();
362 #endif /* FOLLOW_X_FORWARDED_FOR */
364 request
->my_addr
.SetNoAddr(); /* undefined for internal requests */
366 request
->my_addr
.SetPort(0);
368 /* Our version is HTTP/1.1 */
369 HttpVersion
http_ver(1,1);
370 request
->http_ver
= http_ver
;
372 http
->request
= HTTPMSGLOCK(request
);
374 /* optional - skip the access check ? */
375 http
->calloutContext
= new ClientRequestContext(http
);
377 http
->calloutContext
->http_access_done
= false;
379 http
->calloutContext
->redirect_done
= true;
381 http
->calloutContext
->no_cache_done
= true;
389 ClientRequestContext::httpStateIsValid()
391 ClientHttpRequest
*http_
= http
;
393 if (cbdataReferenceValid(http_
))
398 cbdataReferenceDone(http_
);
403 #if FOLLOW_X_FORWARDED_FOR
405 * clientFollowXForwardedForCheck() checks the content of X-Forwarded-For:
406 * against the followXFF ACL, or cleans up and passes control to
407 * clientAccessCheck().
409 * The trust model here is a little ambiguous. So to clarify the logic:
410 * - we may always use the direct client address as the client IP.
411 * - these trust tests merey tell whether we trust given IP enough to believe the
412 * IP string which it appended to the X-Forwarded-For: header.
413 * - if at any point we don't trust what an IP adds we stop looking.
414 * - at that point the current contents of indirect_client_addr are the value set
415 * by the last previously trusted IP.
416 * ++ indirect_client_addr contains the remote direct client from the trusted peers viewpoint.
419 clientFollowXForwardedForCheck(int answer
, void *data
)
421 ClientRequestContext
*calloutContext
= (ClientRequestContext
*) data
;
423 if (!calloutContext
->httpStateIsValid())
426 ClientHttpRequest
*http
= calloutContext
->http
;
427 HttpRequest
*request
= http
->request
;
430 * answer should be be ACCESS_ALLOWED or ACCESS_DENIED if we are
431 * called as a result of ACL checks, or -1 if we are called when
432 * there's nothing left to do.
434 if (answer
== ACCESS_ALLOWED
&&
435 request
->x_forwarded_for_iterator
.size () != 0) {
438 * Remove the last comma-delimited element from the
439 * x_forwarded_for_iterator and use it to repeat the cycle.
442 const char *asciiaddr
;
445 p
= request
->x_forwarded_for_iterator
.termedBuf();
446 l
= request
->x_forwarded_for_iterator
.size();
449 * XXX x_forwarded_for_iterator should really be a list of
450 * IP addresses, but it's a String instead. We have to
451 * walk backwards through the String, biting off the last
452 * comma-delimited part each time. As long as the data is in
453 * a String, we should probably implement and use a variant of
454 * strListGetItem() that walks backwards instead of forwards
455 * through a comma-separated list. But we don't even do that;
456 * we just do the work in-line here.
458 /* skip trailing space and commas */
459 while (l
> 0 && (p
[l
-1] == ',' || xisspace(p
[l
-1])))
461 request
->x_forwarded_for_iterator
.cut(l
);
462 /* look for start of last item in list */
463 while (l
> 0 && ! (p
[l
-1] == ',' || xisspace(p
[l
-1])))
466 if ((addr
= asciiaddr
)) {
467 request
->indirect_client_addr
= addr
;
468 request
->x_forwarded_for_iterator
.cut(l
);
469 calloutContext
->acl_checklist
= clientAclChecklistCreate(Config
.accessList
.followXFF
, http
);
470 if (!Config
.onoff
.acl_uses_indirect_client
) {
471 /* override the default src_addr tested if we have to go deeper than one level into XFF */
472 Filled(calloutContext
->acl_checklist
)->src_addr
= request
->indirect_client_addr
;
474 calloutContext
->acl_checklist
->nonBlockingCheck(clientFollowXForwardedForCheck
, data
);
477 } /*if (answer == ACCESS_ALLOWED &&
478 request->x_forwarded_for_iterator.size () != 0)*/
480 /* clean up, and pass control to clientAccessCheck */
481 if (Config
.onoff
.log_uses_indirect_client
) {
483 * Ensure that the access log shows the indirect client
484 * instead of the direct client.
486 ConnStateData
*conn
= http
->getConn();
487 conn
->log_addr
= request
->indirect_client_addr
;
489 request
->x_forwarded_for_iterator
.clean();
490 request
->flags
.done_follow_x_forwarded_for
= 1;
492 if (answer
!= ACCESS_ALLOWED
&& answer
!= ACCESS_DENIED
) {
493 debugs(28, DBG_CRITICAL
, "ERROR: Processing X-Forwarded-For. Stopping at IP address: " << request
->indirect_client_addr
);
496 /* process actual access ACL as normal. */
497 calloutContext
->clientAccessCheck();
499 #endif /* FOLLOW_X_FORWARDED_FOR */
501 /* This is the entry point for external users of the client_side routines */
503 ClientRequestContext::clientAccessCheck()
505 #if FOLLOW_X_FORWARDED_FOR
506 if (!http
->request
->flags
.done_follow_x_forwarded_for
&&
507 Config
.accessList
.followXFF
&&
508 http
->request
->header
.has(HDR_X_FORWARDED_FOR
)) {
510 /* we always trust the direct client address for actual use */
511 http
->request
->indirect_client_addr
= http
->request
->client_addr
;
512 http
->request
->indirect_client_addr
.SetPort(0);
514 /* setup the XFF iterator for processing */
515 http
->request
->x_forwarded_for_iterator
= http
->request
->header
.getList(HDR_X_FORWARDED_FOR
);
517 /* begin by checking to see if we trust direct client enough to walk XFF */
518 acl_checklist
= clientAclChecklistCreate(Config
.accessList
.followXFF
, http
);
519 acl_checklist
->nonBlockingCheck(clientFollowXForwardedForCheck
, this);
522 #endif /* FOLLOW_X_FORWARDED_FOR */
524 if (Config
.accessList
.http
) {
525 acl_checklist
= clientAclChecklistCreate(Config
.accessList
.http
, http
);
526 acl_checklist
->nonBlockingCheck(clientAccessCheckDoneWrapper
, this);
528 debugs(0, DBG_CRITICAL
, "No http_access configuration found. This will block ALL traffic");
529 clientAccessCheckDone(ACCESS_DENIED
);
534 * Identical in operation to clientAccessCheck() but performed later using different configured ACL list.
535 * The default here is to allow all. Since the earlier http_access should do a default deny all.
536 * This check is just for a last-minute denial based on adapted request headers.
539 ClientRequestContext::clientAccessCheck2()
541 if (Config
.accessList
.adapted_http
) {
542 acl_checklist
= clientAclChecklistCreate(Config
.accessList
.adapted_http
, http
);
543 acl_checklist
->nonBlockingCheck(clientAccessCheckDoneWrapper
, this);
545 debugs(85, 2, HERE
<< "No adapted_http_access configuration.");
546 clientAccessCheckDone(ACCESS_ALLOWED
);
551 clientAccessCheckDoneWrapper(int answer
, void *data
)
553 ClientRequestContext
*calloutContext
= (ClientRequestContext
*) data
;
555 if (!calloutContext
->httpStateIsValid())
558 calloutContext
->clientAccessCheckDone(answer
);
562 ClientRequestContext::clientAccessCheckDone(int answer
)
564 acl_checklist
= NULL
;
567 debugs(85, 2, "The request " <<
568 RequestMethodStr(http
->request
->method
) << " " <<
569 http
->uri
<< " is " <<
570 (answer
== ACCESS_ALLOWED
? "ALLOWED" : "DENIED") <<
571 ", because it matched '" <<
572 (AclMatchedName
? AclMatchedName
: "NO ACL's") << "'" );
573 char const *proxy_auth_msg
= "<null>";
575 if (http
->getConn() != NULL
&& http
->getConn()->auth_user_request
!= NULL
)
576 proxy_auth_msg
= http
->getConn()->auth_user_request
->denyMessage("<null>");
577 else if (http
->request
->auth_user_request
!= NULL
)
578 proxy_auth_msg
= http
->request
->auth_user_request
->denyMessage("<null>");
580 if (answer
!= ACCESS_ALLOWED
) {
582 int require_auth
= (answer
== ACCESS_REQ_PROXY_AUTH
|| aclIsProxyAuth(AclMatchedName
));
583 debugs(85, 5, "Access Denied: " << http
->uri
);
584 debugs(85, 5, "AclMatchedName = " << (AclMatchedName
? AclMatchedName
: "<null>"));
587 debugs(33, 5, "Proxy Auth Message = " << (proxy_auth_msg
? proxy_auth_msg
: "<null>"));
590 * NOTE: get page_id here, based on AclMatchedName because if
591 * USE_DELAY_POOLS is enabled, then AclMatchedName gets clobbered in
592 * the clientCreateStoreEntry() call just below. Pedro Ribeiro
595 page_id
= aclGetDenyInfoPage(&Config
.denyInfoList
, AclMatchedName
, answer
!= ACCESS_REQ_PROXY_AUTH
);
597 http
->logType
= LOG_TCP_DENIED
;
600 if (!http
->flags
.accel
) {
601 /* Proxy authorisation needed */
602 status
= HTTP_PROXY_AUTHENTICATION_REQUIRED
;
604 /* WWW authorisation needed */
605 status
= HTTP_UNAUTHORIZED
;
608 if (page_id
== ERR_NONE
)
609 page_id
= ERR_CACHE_ACCESS_DENIED
;
611 status
= HTTP_FORBIDDEN
;
613 if (page_id
== ERR_NONE
)
614 page_id
= ERR_ACCESS_DENIED
;
617 clientStreamNode
*node
= (clientStreamNode
*)http
->client_stream
.tail
->prev
->data
;
618 clientReplyContext
*repContext
= dynamic_cast<clientReplyContext
*>(node
->data
.getRaw());
620 Ip::Address tmpnoaddr
;
621 tmpnoaddr
.SetNoAddr();
622 repContext
->setReplyToError(page_id
, status
,
623 http
->request
->method
, NULL
,
624 http
->getConn() != NULL
? http
->getConn()->peer
: tmpnoaddr
,
627 http
->getConn() != NULL
&& http
->getConn()->auth_user_request
!= NULL
?
628 http
->getConn()->auth_user_request
: http
->request
->auth_user_request
);
630 node
= (clientStreamNode
*)http
->client_stream
.tail
->data
;
631 clientStreamRead(node
, http
, node
->readBuffer
);
635 /* ACCESS_ALLOWED continues here ... */
636 safe_free(http
->uri
);
638 http
->uri
= xstrdup(urlCanonical(http
->request
));
645 adaptationAclCheckDoneWrapper(Adaptation::ServiceGroupPointer g
, void *data
)
647 ClientRequestContext
*calloutContext
= (ClientRequestContext
*)data
;
649 if (!calloutContext
->httpStateIsValid())
652 calloutContext
->adaptationAclCheckDone(g
);
656 ClientRequestContext::adaptationAclCheckDone(Adaptation::ServiceGroupPointer g
)
658 debugs(93,3,HERE
<< this << " adaptationAclCheckDone called");
662 Adaptation::Icap::History::Pointer ih
= http
->request
->icapHistory();
664 if (http
->getConn() != NULL
) {
665 ih
->rfc931
= http
->getConn()->rfc931
;
667 ih
->ssluser
= sslGetUserEmail(fd_table
[http
->getConn()->fd
].ssl
);
670 ih
->log_uri
= http
->log_uri
;
671 ih
->req_sz
= http
->req_sz
;
676 debugs(85,3, HERE
<< "no adaptation needed");
681 http
->startAdaptation(g
);
687 clientRedirectAccessCheckDone(int answer
, void *data
)
689 ClientRequestContext
*context
= (ClientRequestContext
*)data
;
690 ClientHttpRequest
*http
= context
->http
;
691 context
->acl_checklist
= NULL
;
693 if (answer
== ACCESS_ALLOWED
)
694 redirectStart(http
, clientRedirectDoneWrapper
, context
);
696 context
->clientRedirectDone(NULL
);
700 ClientRequestContext::clientRedirectStart()
702 debugs(33, 5, "clientRedirectStart: '" << http
->uri
<< "'");
704 if (Config
.accessList
.redirector
) {
705 acl_checklist
= clientAclChecklistCreate(Config
.accessList
.redirector
, http
);
706 acl_checklist
->nonBlockingCheck(clientRedirectAccessCheckDone
, this);
708 redirectStart(http
, clientRedirectDoneWrapper
, this);
712 clientHierarchical(ClientHttpRequest
* http
)
714 const char *url
= http
->uri
;
715 HttpRequest
*request
= http
->request
;
716 HttpRequestMethod method
= request
->method
;
717 const wordlist
*p
= NULL
;
720 * IMS needs a private key, so we can use the hierarchy for IMS only if our
721 * neighbors support private keys
724 if (request
->flags
.ims
&& !neighbors_do_private_keys
)
728 * This is incorrect: authenticating requests can be sent via a hierarchy
729 * (they can even be cached if the correct headers are set on the reply)
731 if (request
->flags
.auth
)
734 if (method
== METHOD_TRACE
)
737 if (method
!= METHOD_GET
)
740 /* scan hierarchy_stoplist */
741 for (p
= Config
.hierarchy_stoplist
; p
; p
= p
->next
)
742 if (strstr(url
, p
->key
))
745 if (request
->flags
.loopdetect
)
748 if (request
->protocol
== PROTO_HTTP
)
749 return httpCachable(method
);
751 if (request
->protocol
== PROTO_GOPHER
)
752 return gopherCachable(request
);
754 if (request
->protocol
== PROTO_CACHEOBJ
)
762 clientCheckPinning(ClientHttpRequest
* http
)
764 HttpRequest
*request
= http
->request
;
765 HttpHeader
*req_hdr
= &request
->header
;
766 ConnStateData
*http_conn
= http
->getConn();
768 /* Internal requests such as those from ESI includes may be without
769 * a client connection
774 request
->flags
.connection_auth_disabled
= http_conn
->port
->connection_auth_disabled
;
775 if (!request
->flags
.connection_auth_disabled
) {
776 if (http_conn
->pinning
.fd
!= -1) {
777 if (http_conn
->pinning
.auth
) {
778 request
->flags
.connection_auth
= 1;
779 request
->flags
.auth
= 1;
781 request
->flags
.connection_proxy_auth
= 1;
783 request
->setPinnedConnection(http_conn
);
787 /* check if connection auth is used, and flag as candidate for pinning
789 * Note: we may need to set flags.connection_auth even if the connection
790 * is already pinned if it was pinned earlier due to proxy auth
792 if (!request
->flags
.connection_auth
) {
793 if (req_hdr
->has(HDR_AUTHORIZATION
) || req_hdr
->has(HDR_PROXY_AUTHORIZATION
)) {
794 HttpHeaderPos pos
= HttpHeaderInitPos
;
797 while ((e
= req_hdr
->getEntry(&pos
))) {
798 if (e
->id
== HDR_AUTHORIZATION
|| e
->id
== HDR_PROXY_AUTHORIZATION
) {
799 const char *value
= e
->value
.rawBuf();
800 if (strncasecmp(value
, "NTLM ", 5) == 0
802 strncasecmp(value
, "Negotiate ", 10) == 0
804 strncasecmp(value
, "Kerberos ", 9) == 0) {
805 if (e
->id
== HDR_AUTHORIZATION
) {
806 request
->flags
.connection_auth
= 1;
809 request
->flags
.connection_proxy_auth
= 1;
815 if (may_pin
&& !request
->pinnedConnection()) {
816 request
->setPinnedConnection(http
->getConn());
823 clientInterpretRequestHeaders(ClientHttpRequest
* http
)
825 HttpRequest
*request
= http
->request
;
826 HttpHeader
*req_hdr
= &request
->header
;
830 request
->imslen
= -1;
831 request
->ims
= req_hdr
->getTime(HDR_IF_MODIFIED_SINCE
);
833 if (request
->ims
> 0)
834 request
->flags
.ims
= 1;
836 if (!request
->flags
.ignore_cc
) {
837 if (req_hdr
->has(HDR_PRAGMA
)) {
838 String s
= req_hdr
->getList(HDR_PRAGMA
);
840 if (strListIsMember(&s
, "no-cache", ','))
846 if (request
->cache_control
)
847 if (EBIT_TEST(request
->cache_control
->mask
, CC_NO_CACHE
))
851 * Work around for supporting the Reload button in IE browsers when Squid
852 * is used as an accelerator or transparent proxy, by turning accelerated
853 * IMS request to no-cache requests. Now knows about IE 5.5 fix (is
854 * actually only fixed in SP1, but we can't tell whether we are talking to
855 * SP1 or not so all 5.5 versions are treated 'normally').
857 if (Config
.onoff
.ie_refresh
) {
858 if (http
->flags
.accel
&& request
->flags
.ims
) {
859 if ((str
= req_hdr
->getStr(HDR_USER_AGENT
))) {
860 if (strstr(str
, "MSIE 5.01") != NULL
)
862 else if (strstr(str
, "MSIE 5.0") != NULL
)
864 else if (strstr(str
, "MSIE 4.") != NULL
)
866 else if (strstr(str
, "MSIE 3.") != NULL
)
873 if (request
->method
== METHOD_OTHER
) {
878 #if USE_HTTP_VIOLATIONS
880 if (Config
.onoff
.reload_into_ims
)
881 request
->flags
.nocache_hack
= 1;
882 else if (refresh_nocache_hack
)
883 request
->flags
.nocache_hack
= 1;
887 request
->flags
.nocache
= 1;
890 /* ignore range header in non-GETs or non-HEADs */
891 if (request
->method
== METHOD_GET
|| request
->method
== METHOD_HEAD
) {
892 // XXX: initialize if we got here without HttpRequest::parseHeader()
894 request
->range
= req_hdr
->getRange();
896 if (request
->range
) {
897 request
->flags
.range
= 1;
898 clientStreamNode
*node
= (clientStreamNode
*)http
->client_stream
.tail
->data
;
899 /* XXX: This is suboptimal. We should give the stream the range set,
900 * and thereby let the top of the stream set the offset when the
901 * size becomes known. As it is, we will end up requesting from 0
902 * for evey -X range specification.
903 * RBC - this may be somewhat wrong. We should probably set the range
904 * iter up at this point.
906 node
->readBuffer
.offset
= request
->range
->lowestOffset(0);
907 http
->range_iter
.pos
= request
->range
->begin();
908 http
->range_iter
.valid
= true;
912 /* Only HEAD and GET requests permit a Range or Request-Range header.
913 * If these headers appear on any other type of request, delete them now.
916 req_hdr
->delById(HDR_RANGE
);
917 req_hdr
->delById(HDR_REQUEST_RANGE
);
918 delete request
->range
;
919 request
->range
= NULL
;
922 if (req_hdr
->has(HDR_AUTHORIZATION
))
923 request
->flags
.auth
= 1;
925 clientCheckPinning(http
);
927 if (request
->login
[0] != '\0')
928 request
->flags
.auth
= 1;
930 if (req_hdr
->has(HDR_VIA
)) {
931 String s
= req_hdr
->getList(HDR_VIA
);
933 * ThisCache cannot be a member of Via header, "1.0 ThisCache" can.
934 * Note ThisCache2 has a space prepended to the hostname so we don't
935 * accidentally match super-domains.
938 if (strListIsSubstr(&s
, ThisCache2
, ',')) {
939 debugObj(33, 1, "WARNING: Forwarding loop detected for:\n",
940 request
, (ObjPackMethod
) & httpRequestPack
);
941 request
->flags
.loopdetect
= 1;
945 fvdbCountVia(s
.termedBuf());
953 \todo --enable-useragent-log and --enable-referer-log. We should
954 probably drop those two as the custom log formats accomplish pretty much the same thing..
956 #if USE_USERAGENT_LOG
957 if ((str
= req_hdr
->getStr(HDR_USER_AGENT
)))
958 logUserAgent(fqdnFromAddr(http
->getConn()->log_addr
), str
);
963 if ((str
= req_hdr
->getStr(HDR_REFERER
)))
964 logReferer(fqdnFromAddr(http
->getConn()->log_addr
), str
, http
->log_uri
);
969 if (req_hdr
->has(HDR_X_FORWARDED_FOR
)) {
970 String s
= req_hdr
->getList(HDR_X_FORWARDED_FOR
);
971 fvdbCountForw(s
.termedBuf());
977 request
->flags
.cachable
= http
->request
->cacheable();
979 if (clientHierarchical(http
))
980 request
->flags
.hierarchical
= 1;
982 debugs(85, 5, "clientInterpretRequestHeaders: REQ_NOCACHE = " <<
983 (request
->flags
.nocache
? "SET" : "NOT SET"));
984 debugs(85, 5, "clientInterpretRequestHeaders: REQ_CACHABLE = " <<
985 (request
->flags
.cachable
? "SET" : "NOT SET"));
986 debugs(85, 5, "clientInterpretRequestHeaders: REQ_HIERARCHICAL = " <<
987 (request
->flags
.hierarchical
? "SET" : "NOT SET"));
992 clientRedirectDoneWrapper(void *data
, char *result
)
994 ClientRequestContext
*calloutContext
= (ClientRequestContext
*)data
;
996 if (!calloutContext
->httpStateIsValid())
999 calloutContext
->clientRedirectDone(result
);
1003 ClientRequestContext::clientRedirectDone(char *result
)
1005 HttpRequest
*new_request
= NULL
;
1006 HttpRequest
*old_request
= http
->request
;
1007 debugs(85, 5, "clientRedirectDone: '" << http
->uri
<< "' result=" << (result
? result
: "NULL"));
1008 assert(redirect_state
== REDIRECT_PENDING
);
1009 redirect_state
= REDIRECT_DONE
;
1012 http_status status
= (http_status
) atoi(result
);
1014 if (status
== HTTP_MOVED_PERMANENTLY
1015 || status
== HTTP_MOVED_TEMPORARILY
1016 || status
== HTTP_SEE_OTHER
1017 || status
== HTTP_TEMPORARY_REDIRECT
) {
1020 if ((t
= strchr(result
, ':')) != NULL
) {
1021 http
->redirect
.status
= status
;
1022 http
->redirect
.location
= xstrdup(t
+ 1);
1023 // TODO: validate the URL produced here is RFC 2616 compliant absolute URI
1025 if (old_request
->http_ver
< HttpVersion(1,1))
1026 debugs(85, DBG_CRITICAL
, "ERROR: URL-rewrite produces invalid 302 redirect Location: " << result
);
1028 debugs(85, DBG_CRITICAL
, "ERROR: URL-rewrite produces invalid 303 redirect Location: " << result
);
1030 } else if (strcmp(result
, http
->uri
)) {
1031 if (!(new_request
= HttpRequest::CreateFromUrlAndMethod(result
, old_request
->method
)))
1032 debugs(85, DBG_CRITICAL
, "ERROR: URL-rewrite produces invalid request: " <<
1033 old_request
->method
<< " " << result
<< " HTTP/1.1");
1038 safe_free(http
->uri
);
1039 http
->uri
= xstrdup(urlCanonical(new_request
));
1040 new_request
->http_ver
= old_request
->http_ver
;
1041 new_request
->header
.append(&old_request
->header
);
1042 new_request
->client_addr
= old_request
->client_addr
;
1043 #if FOLLOW_X_FORWARDED_FOR
1044 new_request
->indirect_client_addr
= old_request
->indirect_client_addr
;
1045 #endif /* FOLLOW_X_FORWARDED_FOR */
1046 new_request
->my_addr
= old_request
->my_addr
;
1047 new_request
->flags
= old_request
->flags
;
1048 new_request
->flags
.redirected
= 1;
1049 new_request
->auth_user_request
= old_request
->auth_user_request
;
1051 if (old_request
->body_pipe
!= NULL
) {
1052 new_request
->body_pipe
= old_request
->body_pipe
;
1053 old_request
->body_pipe
= NULL
;
1054 debugs(0,0,HERE
<< "redirecting body_pipe " << new_request
->body_pipe
<< " from request " << old_request
<< " to " << new_request
);
1057 new_request
->content_length
= old_request
->content_length
;
1058 new_request
->extacl_user
= old_request
->extacl_user
;
1059 new_request
->extacl_passwd
= old_request
->extacl_passwd
;
1060 new_request
->flags
.proxy_keepalive
= old_request
->flags
.proxy_keepalive
;
1061 HTTPMSGUNLOCK(old_request
);
1062 http
->request
= HTTPMSGLOCK(new_request
);
1065 /* FIXME PIPELINE: This is innacurate during pipelining */
1067 if (http
->getConn() != NULL
)
1068 fd_note(http
->getConn()->fd
, http
->uri
);
1075 /** Test cache allow/deny configuration
1076 * Sets flags.cachable=1 if caching is not denied.
1079 ClientRequestContext::checkNoCache()
1081 if (Config
.accessList
.noCache
) {
1082 acl_checklist
= clientAclChecklistCreate(Config
.accessList
.noCache
, http
);
1083 acl_checklist
->nonBlockingCheck(checkNoCacheDoneWrapper
, this);
1085 /* unless otherwise specified, we try to cache. */
1086 checkNoCacheDone(1);
1091 checkNoCacheDoneWrapper(int answer
, void *data
)
1093 ClientRequestContext
*calloutContext
= (ClientRequestContext
*) data
;
1095 if (!calloutContext
->httpStateIsValid())
1098 calloutContext
->checkNoCacheDone(answer
);
1102 ClientRequestContext::checkNoCacheDone(int answer
)
1104 acl_checklist
= NULL
;
1105 http
->request
->flags
.cachable
= answer
;
1110 * Identify requests that do not go through the store and client side stream
1111 * and forward them to the appropriate location. All other requests, request
1115 ClientHttpRequest::processRequest()
1117 debugs(85, 4, "clientProcessRequest: " << RequestMethodStr(request
->method
) << " '" << uri
<< "'");
1120 if (request
->method
== METHOD_CONNECT
&& sslBumpNeeded()) {
1126 if (request
->method
== METHOD_CONNECT
&& !redirect
.status
) {
1127 logType
= LOG_TCP_MISS
;
1128 getConn()->stopReading(); // tunnels read for themselves
1129 tunnelStart(this, &out
.size
, &al
.http
.code
);
1137 ClientHttpRequest::httpStart()
1139 PROF_start(httpStart
);
1140 logType
= LOG_TAG_NONE
;
1141 debugs(85, 4, "ClientHttpRequest::httpStart: " << log_tags
[logType
] << " for '" << uri
<< "'");
1143 /* no one should have touched this */
1144 assert(out
.offset
== 0);
1145 /* Use the Stream Luke */
1146 clientStreamNode
*node
= (clientStreamNode
*)client_stream
.tail
->data
;
1147 clientStreamRead(node
, this, node
->readBuffer
);
1148 PROF_stop(httpStart
);
1153 // determines whether we should bump the CONNECT request
1155 ClientHttpRequest::sslBumpNeeded() const
1157 if (!getConn()->port
->sslBump
|| !Config
.accessList
.ssl_bump
)
1160 debugs(85, 5, HERE
<< "SslBump possible, checking ACL");
1162 ACLFilledChecklist
check(Config
.accessList
.ssl_bump
, request
, NULL
);
1163 check
.src_addr
= request
->client_addr
;
1164 check
.my_addr
= request
->my_addr
;
1165 return check
.fastCheck() == 1;
1168 // called when comm_write has completed
1170 SslBumpEstablish(int, char *, size_t, comm_err_t errflag
, int, void *data
)
1172 ClientHttpRequest
*r
= static_cast<ClientHttpRequest
*>(data
);
1173 debugs(85, 5, HERE
<< "responded to CONNECT: " << r
<< " ? " << errflag
);
1175 assert(r
&& cbdataReferenceValid(r
));
1176 r
->sslBumpEstablish(errflag
);
1180 ClientHttpRequest::sslBumpEstablish(comm_err_t errflag
)
1182 // Bail out quickly on COMM_ERR_CLOSING - close handlers will tidy up
1183 if (errflag
== COMM_ERR_CLOSING
)
1187 getConn()->startClosing("CONNECT response failure in SslBump");
1191 getConn()->switchToHttps();
1195 ClientHttpRequest::sslBumpStart()
1197 debugs(85, 5, HERE
<< "ClientHttpRequest::sslBumpStart");
1199 // send an HTTP 200 response to kick client SSL negotiation
1200 const int fd
= getConn()->fd
;
1201 debugs(33, 7, HERE
<< "Confirming CONNECT tunnel on FD " << fd
);
1203 // TODO: Unify with tunnel.cc and add a Server(?) header
1204 static const char *const conn_established
=
1205 "HTTP/1.0 200 Connection established\r\n\r\n";
1206 comm_write(fd
, conn_established
, strlen(conn_established
),
1207 &SslBumpEstablish
, this, NULL
);
1213 ClientHttpRequest::gotEnough() const
1215 /** TODO: should be querying the stream. */
1216 int64_t contentLength
=
1217 memObject()->getReply()->bodySize(request
->method
);
1218 assert(contentLength
>= 0);
1220 if (out
.offset
< contentLength
)
1227 ClientHttpRequest::storeEntry(StoreEntry
*newEntry
)
1233 ClientHttpRequest::loggingEntry(StoreEntry
*newEntry
)
1236 loggingEntry_
->unlock();
1238 loggingEntry_
= newEntry
;
1241 loggingEntry_
->lock();
1245 * doCallouts() - This function controls the order of "callout"
1246 * executions, including non-blocking access control checks, the
1247 * redirector, and ICAP. Previously, these callouts were chained
1248 * together such that "clientAccessCheckDone()" would call
1249 * "clientRedirectStart()" and so on.
1251 * The ClientRequestContext (aka calloutContext) class holds certain
1252 * state data for the callout/callback operations. Previously
1253 * ClientHttpRequest would sort of hand off control to ClientRequestContext
1254 * for a short time. ClientRequestContext would then delete itself
1255 * and pass control back to ClientHttpRequest when all callouts
1258 * This caused some problems for ICAP because we want to make the
1259 * ICAP callout after checking ACLs, but before checking the no_cache
1260 * list. We can't stuff the ICAP state into the ClientRequestContext
1261 * class because we still need the ICAP state after ClientRequestContext
1264 * Note that ClientRequestContext is created before the first call
1267 * If one of the callouts notices that ClientHttpRequest is no
1268 * longer valid, it should call cbdataReferenceDone() so that
1269 * ClientHttpRequest's reference count goes to zero and it will get
1270 * deleted. ClientHttpRequest will then delete ClientRequestContext.
1272 * Note that we set the _done flags here before actually starting
1273 * the callout. This is strictly for convenience.
1276 extern tos_t
aclMapTOS (acl_tos
* head
, ACLChecklist
* ch
);
1277 extern nfmark_t
aclMapNfmark (acl_nfmark
* head
, ACLChecklist
* ch
);
1280 ClientHttpRequest::doCallouts()
1282 assert(calloutContext
);
1284 /*Save the original request for logging purposes*/
1285 if (!calloutContext
->http
->al
.request
)
1286 calloutContext
->http
->al
.request
= HTTPMSGLOCK(request
);
1288 if (!calloutContext
->http_access_done
) {
1289 debugs(83, 3, HERE
<< "Doing calloutContext->clientAccessCheck()");
1290 calloutContext
->http_access_done
= true;
1291 calloutContext
->clientAccessCheck();
1296 if (!calloutContext
->adaptation_acl_check_done
) {
1297 calloutContext
->adaptation_acl_check_done
= true;
1298 if (Adaptation::AccessCheck::Start(
1299 Adaptation::methodReqmod
, Adaptation::pointPreCache
,
1300 request
, NULL
, adaptationAclCheckDoneWrapper
, calloutContext
))
1301 return; // will call callback
1305 if (!calloutContext
->redirect_done
) {
1306 calloutContext
->redirect_done
= true;
1307 assert(calloutContext
->redirect_state
== REDIRECT_NONE
);
1309 if (Config
.Program
.redirect
) {
1310 debugs(83, 3, HERE
<< "Doing calloutContext->clientRedirectStart()");
1311 calloutContext
->redirect_state
= REDIRECT_PENDING
;
1312 calloutContext
->clientRedirectStart();
1317 if (!calloutContext
->adapted_http_access_done
) {
1318 debugs(83, 3, HERE
<< "Doing calloutContext->clientAccessCheck2()");
1319 calloutContext
->adapted_http_access_done
= true;
1320 calloutContext
->clientAccessCheck2();
1324 if (!calloutContext
->interpreted_req_hdrs
) {
1325 debugs(83, 3, HERE
<< "Doing clientInterpretRequestHeaders()");
1326 calloutContext
->interpreted_req_hdrs
= 1;
1327 clientInterpretRequestHeaders(this);
1330 if (!calloutContext
->no_cache_done
) {
1331 calloutContext
->no_cache_done
= true;
1333 if (Config
.accessList
.noCache
&& request
->flags
.cachable
) {
1334 debugs(83, 3, HERE
<< "Doing calloutContext->checkNoCache()");
1335 calloutContext
->checkNoCache();
1340 if (!calloutContext
->tosToClientDone
) {
1341 calloutContext
->tosToClientDone
= true;
1342 if (getConn() != NULL
) {
1343 ACLFilledChecklist
ch(NULL
, request
, NULL
);
1344 ch
.src_addr
= request
->client_addr
;
1345 ch
.my_addr
= request
->my_addr
;
1346 tos_t tos
= aclMapTOS(Ip::Qos::TheConfig
.tosToClient
, &ch
);
1348 Ip::Qos::setSockTos(getConn()->fd
, tos
);
1352 if (!calloutContext
->nfmarkToClientDone
) {
1353 calloutContext
->nfmarkToClientDone
= true;
1354 if (getConn() != NULL
) {
1355 ACLFilledChecklist
ch(NULL
, request
, NULL
);
1356 ch
.src_addr
= request
->client_addr
;
1357 ch
.my_addr
= request
->my_addr
;
1358 nfmark_t mark
= aclMapNfmark(Ip::Qos::TheConfig
.nfmarkToClient
, &ch
);
1360 Ip::Qos::setSockNfmark(getConn()->fd
, mark
);
1364 cbdataReferenceDone(calloutContext
->http
);
1365 delete calloutContext
;
1366 calloutContext
= NULL
;
1369 headersLog(0, 1, request
->method
, request
);
1372 debugs(83, 3, HERE
<< "calling processRequest()");
1376 Adaptation::Icap::History::Pointer ih
= request
->icapHistory();
1378 ih
->logType
= logType
;
1383 #include "client_side_request.cci"
1387 /// Initiate an asynchronous adaptation transaction which will call us back.
1389 ClientHttpRequest::startAdaptation(const Adaptation::ServiceGroupPointer
&g
)
1391 debugs(85, 3, HERE
<< "adaptation needed for " << this);
1392 assert(!virginHeadSource
);
1393 assert(!adaptedBodySource
);
1394 virginHeadSource
= initiateAdaptation(
1395 new Adaptation::Iterator(request
, NULL
, g
));
1397 // we could try to guess whether we can bypass this adaptation
1398 // initiation failure, but it should not really happen
1399 Must(initiated(virginHeadSource
));
1403 ClientHttpRequest::noteAdaptationAnswer(HttpMsg
*msg
)
1405 assert(cbdataReferenceValid(this)); // indicates bug
1408 if (HttpRequest
*new_req
= dynamic_cast<HttpRequest
*>(msg
)) {
1410 * Replace the old request with the new request.
1412 HTTPMSGUNLOCK(request
);
1413 request
= HTTPMSGLOCK(new_req
);
1415 * Store the new URI for logging
1418 uri
= xstrdup(urlCanonical(request
));
1419 setLogUri(this, urlCanonicalClean(request
));
1420 assert(request
->method
.id());
1421 } else if (HttpReply
*new_rep
= dynamic_cast<HttpReply
*>(msg
)) {
1422 debugs(85,3,HERE
<< "REQMOD reply is HTTP reply");
1424 // subscribe to receive reply body
1425 if (new_rep
->body_pipe
!= NULL
) {
1426 adaptedBodySource
= new_rep
->body_pipe
;
1427 int consumer_ok
= adaptedBodySource
->setConsumerIfNotLate(this);
1428 assert(consumer_ok
);
1431 clientStreamNode
*node
= (clientStreamNode
*)client_stream
.tail
->prev
->data
;
1432 clientReplyContext
*repContext
= dynamic_cast<clientReplyContext
*>(node
->data
.getRaw());
1433 repContext
->createStoreEntry(request
->method
, request
->flags
);
1435 EBIT_CLR(storeEntry()->flags
, ENTRY_FWD_HDR_WAIT
);
1436 request_satisfaction_mode
= true;
1437 request_satisfaction_offset
= 0;
1438 storeEntry()->replaceHttpReply(new_rep
);
1439 storeEntry()->timestampsSet();
1441 if (!adaptedBodySource
) // no body
1442 storeEntry()->complete();
1443 clientGetMoreData(node
, this);
1446 // we are done with getting headers (but may be receiving body)
1447 clearAdaptation(virginHeadSource
);
1449 if (!request_satisfaction_mode
)
1454 ClientHttpRequest::noteAdaptationQueryAbort(bool final
)
1456 clearAdaptation(virginHeadSource
);
1457 assert(!adaptedBodySource
);
1458 handleAdaptationFailure(!final
);
1462 ClientHttpRequest::noteMoreBodyDataAvailable(BodyPipe::Pointer
)
1464 assert(request_satisfaction_mode
);
1465 assert(adaptedBodySource
!= NULL
);
1467 if (const size_t contentSize
= adaptedBodySource
->buf().contentSize()) {
1468 BodyPipeCheckout
bpc(*adaptedBodySource
);
1469 const StoreIOBuffer
ioBuf(&bpc
.buf
, request_satisfaction_offset
);
1470 storeEntry()->write(ioBuf
);
1471 // assume can write everything
1472 request_satisfaction_offset
+= contentSize
;
1473 bpc
.buf
.consume(contentSize
);
1477 if (adaptedBodySource
->exhausted())
1478 endRequestSatisfaction();
1479 // else wait for more body data
1483 ClientHttpRequest::noteBodyProductionEnded(BodyPipe::Pointer
)
1485 assert(!virginHeadSource
);
1486 if (adaptedBodySource
!= NULL
) { // did not end request satisfaction yet
1487 // We do not expect more because noteMoreBodyDataAvailable always
1488 // consumes everything. We do not even have a mechanism to consume
1489 // leftovers after noteMoreBodyDataAvailable notifications seize.
1490 assert(adaptedBodySource
->exhausted());
1491 endRequestSatisfaction();
1496 ClientHttpRequest::endRequestSatisfaction()
1498 debugs(85,4, HERE
<< this << " ends request satisfaction");
1499 assert(request_satisfaction_mode
);
1500 stopConsumingFrom(adaptedBodySource
);
1502 // TODO: anything else needed to end store entry formation correctly?
1503 storeEntry()->complete();
1507 ClientHttpRequest::noteBodyProducerAborted(BodyPipe::Pointer
)
1509 assert(!virginHeadSource
);
1510 stopConsumingFrom(adaptedBodySource
);
1511 handleAdaptationFailure();
1515 ClientHttpRequest::handleAdaptationFailure(bool bypassable
)
1517 debugs(85,3, HERE
<< "handleAdaptationFailure(" << bypassable
<< ")");
1519 const bool usedStore
= storeEntry() && !storeEntry()->isEmpty();
1520 const bool usedPipe
= request
->body_pipe
!= NULL
&&
1521 request
->body_pipe
->consumedSize() > 0;
1523 if (bypassable
&& !usedStore
&& !usedPipe
) {
1524 debugs(85,3, HERE
<< "ICAP REQMOD callout failed, bypassing: " << calloutContext
);
1530 debugs(85,3, HERE
<< "ICAP REQMOD callout failed, responding with error");
1532 clientStreamNode
*node
= (clientStreamNode
*)client_stream
.tail
->prev
->data
;
1533 clientReplyContext
*repContext
= dynamic_cast<clientReplyContext
*>(node
->data
.getRaw());
1536 // The original author of the code also wanted to pass an errno to
1537 // setReplyToError, but it seems unlikely that the errno reflects the
1538 // true cause of the error at this point, so I did not pass it.
1541 ConnStateData
* c
= getConn();
1542 repContext
->setReplyToError(ERR_ICAP_FAILURE
, HTTP_INTERNAL_SERVER_ERROR
,
1543 request
->method
, NULL
,
1544 (c
!= NULL
? c
->peer
: noAddr
), request
, NULL
,
1545 (c
!= NULL
&& c
->auth_user_request
!= NULL
?
1546 c
->auth_user_request
: request
->auth_user_request
));
1548 node
= (clientStreamNode
*)client_stream
.tail
->data
;
1549 clientStreamRead(node
, this, node
->readBuffer
);