5 * DEBUG: section 11 Hypertext Transfer Protocol (HTTP)
6 * AUTHOR: Harvest Derived
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.
37 * Anonymizing patch by lutz@as-node.jena.thur.de
38 * have a look into http-anon.c to get more informations.
43 #include "acl/FilledChecklist.h"
44 #include "auth/UserRequest.h"
45 #include "base/AsyncJobCalls.h"
46 #include "base/TextException.h"
48 #include "comm/Write.h"
50 #include "DelayPools.h"
52 #include "errorpage.h"
54 #include "HttpControlMsg.h"
55 #include "HttpHdrContRange.h"
56 #include "HttpHdrSc.h"
57 #include "HttpHdrScTarget.h"
58 #include "HttpReply.h"
59 #include "HttpRequest.h"
61 #include "MemObject.h"
64 #include "SquidTime.h"
68 #define SQUID_ENTER_THROWING_CODE() try {
69 #define SQUID_EXIT_THROWING_CODE(status) \
72 catch (const std::exception &e) { \
73 debugs (11, 1, "Exception error:" << e.what()); \
77 CBDATA_CLASS_INIT(HttpStateData
);
79 static const char *const crlf
= "\r\n";
81 static void httpMaybeRemovePublic(StoreEntry
*, http_status
);
82 static void copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry
*e
, const String strConnection
, HttpRequest
* request
, const HttpRequest
* orig_request
,
83 HttpHeader
* hdr_out
, const int we_do_ranges
, const http_state_flags
);
85 HttpStateData::HttpStateData(FwdState
*theFwdState
) : AsyncJob("HttpStateData"), ServerStateData(theFwdState
),
86 lastChunk(0), header_bytes_read(0), reply_bytes_read(0),
87 body_bytes_truncated(0), httpChunkDecoder(NULL
)
89 debugs(11,5,HERE
<< "HttpStateData " << this << " created");
90 ignoreCacheControl
= false;
91 surrogateNoStore
= false;
95 orig_request
= HTTPMSGLOCK(fwd
->request
);
97 // reset peer response time stats for %<pt
98 orig_request
->hier
.peer_http_request_sent
.tv_sec
= 0;
99 orig_request
->hier
.peer_http_request_sent
.tv_usec
= 0;
102 _peer
= fwd
->servers
->_peer
; /* might be NULL */
107 if (_peer
->options
.originserver
)
108 url
= orig_request
->urlpath
.termedBuf();
112 HttpRequest
* proxy_req
= new HttpRequest(orig_request
->method
,
113 orig_request
->protocol
, url
);
115 proxy_req
->SetHost(_peer
->host
);
117 proxy_req
->port
= _peer
->http_port
;
119 proxy_req
->flags
= orig_request
->flags
;
121 proxy_req
->lastmod
= orig_request
->lastmod
;
123 proxy_req
->flags
.proxying
= 1;
125 HTTPMSGUNLOCK(request
);
127 request
= HTTPMSGLOCK(proxy_req
);
130 * This NEIGHBOR_PROXY_ONLY check probably shouldn't be here.
131 * We might end up getting the object from somewhere else if,
132 * for example, the request to this neighbor fails.
134 if (_peer
->options
.proxy_only
)
135 entry
->releaseRequest();
138 entry
->setNoDelay(_peer
->options
.no_delay
);
143 * register the handler to free HTTP state data when the FD closes
145 typedef CommCbMemFunT
<HttpStateData
, CommCloseCbParams
> Dialer
;
146 closeHandler
= JobCallback(9, 5,
147 Dialer
, this, HttpStateData::httpStateConnClosed
);
148 comm_add_close_handler(fd
, closeHandler
);
151 HttpStateData::~HttpStateData()
154 * don't forget that ~ServerStateData() gets called automatically
157 if (!readBuf
->isNull())
162 if (httpChunkDecoder
)
163 delete httpChunkDecoder
;
165 HTTPMSGUNLOCK(orig_request
);
167 debugs(11,5, HERE
<< "HttpStateData " << this << " destroyed; FD " << fd
);
171 HttpStateData::dataDescriptor() const
177 httpStateFree(int fd, void *data)
179 HttpStateData *httpState = static_cast<HttpStateData *>(data);
180 debugs(11, 5, "httpStateFree: FD " << fd << ", httpState=" << data);
185 HttpStateData::httpStateConnClosed(const CommCloseCbParams
¶ms
)
187 debugs(11, 5, "httpStateFree: FD " << params
.fd
<< ", httpState=" << params
.data
);
188 deleteThis("HttpStateData::httpStateConnClosed");
192 httpCachable(const HttpRequestMethod
& method
)
194 /* GET and HEAD are cachable. Others are not. */
196 // TODO: replase to HttpRequestMethod::isCachable() ?
197 if (method
!= METHOD_GET
&& method
!= METHOD_HEAD
)
205 HttpStateData::httpTimeout(const CommTimeoutCbParams
¶ms
)
207 debugs(11, 4, "httpTimeout: FD " << fd
<< ": '" << entry
->url() << "'" );
209 if (entry
->store_status
== STORE_PENDING
) {
210 fwd
->fail(errorCon(ERR_READ_TIMEOUT
, HTTP_GATEWAY_TIMEOUT
, fwd
->request
));
217 httpMaybeRemovePublic(StoreEntry
* e
, http_status status
)
223 if (!EBIT_TEST(e
->flags
, KEY_PRIVATE
))
230 case HTTP_NON_AUTHORITATIVE_INFORMATION
:
232 case HTTP_MULTIPLE_CHOICES
:
234 case HTTP_MOVED_PERMANENTLY
:
236 case HTTP_MOVED_TEMPORARILY
:
247 case HTTP_METHOD_NOT_ALLOWED
:
254 case HTTP_UNAUTHORIZED
:
264 * Any 2xx response should eject previously cached entities...
267 if (status
>= 200 && status
< 300)
275 if (!remove
&& !forbidden
)
280 if (e
->mem_obj
->request
)
281 pe
= storeGetPublicByRequest(e
->mem_obj
->request
);
283 pe
= storeGetPublic(e
->mem_obj
->url
, e
->mem_obj
->method
);
288 neighborsHtcpClear(e
, NULL
, e
->mem_obj
->request
, e
->mem_obj
->method
, HTCP_CLR_INVALIDATION
);
294 * Also remove any cached HEAD response in case the object has
297 if (e
->mem_obj
->request
)
298 pe
= storeGetPublicByRequestMethod(e
->mem_obj
->request
, METHOD_HEAD
);
300 pe
= storeGetPublic(e
->mem_obj
->url
, METHOD_HEAD
);
305 neighborsHtcpClear(e
, NULL
, e
->mem_obj
->request
, HttpRequestMethod(METHOD_HEAD
), HTCP_CLR_INVALIDATION
);
312 HttpStateData::processSurrogateControl(HttpReply
*reply
)
314 if (request
->flags
.accelerated
&& reply
->surrogate_control
) {
315 HttpHdrScTarget
*sctusable
= httpHdrScGetMergedTarget(reply
->surrogate_control
, Config
.Accel
.surrogate_id
);
318 if (EBIT_TEST(sctusable
->mask
, SC_NO_STORE
) ||
319 (Config
.onoff
.surrogate_is_remote
320 && EBIT_TEST(sctusable
->mask
, SC_NO_STORE_REMOTE
))) {
321 surrogateNoStore
= true;
322 entry
->makePrivate();
325 /* The HttpHeader logic cannot tell if the header it's parsing is a reply to an
326 * accelerated request or not...
327 * Still, this is an abstraction breach. - RC
329 if (sctusable
->max_age
!= -1) {
330 if (sctusable
->max_age
< sctusable
->max_stale
)
331 reply
->expires
= reply
->date
+ sctusable
->max_age
;
333 reply
->expires
= reply
->date
+ sctusable
->max_stale
;
335 /* And update the timestamps */
336 entry
->timestampsSet();
339 /* We ignore cache-control directives as per the Surrogate specification */
340 ignoreCacheControl
= true;
342 httpHdrScTargetDestroy(sctusable
);
348 HttpStateData::cacheableReply()
350 HttpReply
const *rep
= finalReply();
351 HttpHeader
const *hdr
= &rep
->header
;
352 const int cc_mask
= (rep
->cache_control
) ? rep
->cache_control
->mask
: 0;
354 #if USE_HTTP_VIOLATIONS
356 const refresh_t
*R
= NULL
;
358 /* This strange looking define first looks up the refresh pattern
359 * and then checks if the specified flag is set. The main purpose
360 * of this is to simplify the refresh pattern lookup and USE_HTTP_VIOLATIONS
363 #define REFRESH_OVERRIDE(flag) \
364 ((R = (R ? R : refreshLimits(entry->mem_obj->url))) , \
365 (R && R->flags.flag))
367 #define REFRESH_OVERRIDE(flag) 0
370 if (surrogateNoStore
)
373 // RFC 2616: do not cache replies to responses with no-store CC directive
374 if (request
&& request
->cache_control
&&
375 EBIT_TEST(request
->cache_control
->mask
, CC_NO_STORE
) &&
376 !REFRESH_OVERRIDE(ignore_no_store
))
379 if (!ignoreCacheControl
) {
380 if (EBIT_TEST(cc_mask
, CC_PRIVATE
)) {
381 if (!REFRESH_OVERRIDE(ignore_private
))
385 if (EBIT_TEST(cc_mask
, CC_NO_CACHE
)) {
386 if (!REFRESH_OVERRIDE(ignore_no_cache
))
390 if (EBIT_TEST(cc_mask
, CC_NO_STORE
)) {
391 if (!REFRESH_OVERRIDE(ignore_no_store
))
396 if (request
->flags
.auth
|| request
->flags
.auth_sent
) {
398 * Responses to requests with authorization may be cached
399 * only if a Cache-Control: public reply header is present.
400 * RFC 2068, sec 14.9.4
403 if (!EBIT_TEST(cc_mask
, CC_PUBLIC
)) {
404 if (!REFRESH_OVERRIDE(ignore_auth
))
409 /* Pragma: no-cache in _replies_ is not documented in HTTP,
410 * but servers like "Active Imaging Webcast/2.0" sure do use it */
411 if (hdr
->has(HDR_PRAGMA
)) {
412 String s
= hdr
->getList(HDR_PRAGMA
);
413 const int no_cache
= strListIsMember(&s
, "no-cache", ',');
417 if (!REFRESH_OVERRIDE(ignore_no_cache
))
423 * The "multipart/x-mixed-replace" content type is used for
424 * continuous push replies. These are generally dynamic and
425 * probably should not be cachable
427 if ((v
= hdr
->getStr(HDR_CONTENT_TYPE
)))
428 if (!strncasecmp(v
, "multipart/x-mixed-replace", 25))
431 switch (rep
->sline
.status
) {
432 /* Responses that are cacheable */
436 case HTTP_NON_AUTHORITATIVE_INFORMATION
:
438 case HTTP_MULTIPLE_CHOICES
:
440 case HTTP_MOVED_PERMANENTLY
:
444 * Don't cache objects that need to be refreshed on next request,
445 * unless we know how to refresh it.
448 if (!refreshIsCachable(entry
) && !REFRESH_OVERRIDE(store_stale
)) {
449 debugs(22, 3, "refreshIsCachable() returned non-cacheable..");
457 /* Responses that only are cacheable if the server says so */
459 case HTTP_MOVED_TEMPORARILY
:
460 case HTTP_TEMPORARY_REDIRECT
:
461 if (rep
->expires
> rep
->date
&& rep
->date
> 0)
469 /* Errors can be negatively cached */
471 case HTTP_NO_CONTENT
:
475 case HTTP_BAD_REQUEST
:
481 case HTTP_METHOD_NOT_ALLOWED
:
483 case HTTP_REQUEST_URI_TOO_LARGE
:
485 case HTTP_INTERNAL_SERVER_ERROR
:
487 case HTTP_NOT_IMPLEMENTED
:
489 case HTTP_BAD_GATEWAY
:
491 case HTTP_SERVICE_UNAVAILABLE
:
493 case HTTP_GATEWAY_TIMEOUT
:
499 /* Some responses can never be cached */
501 case HTTP_PARTIAL_CONTENT
: /* Not yet supported */
505 case HTTP_NOT_MODIFIED
:
507 case HTTP_UNAUTHORIZED
:
509 case HTTP_PROXY_AUTHENTICATION_REQUIRED
:
511 case HTTP_INVALID_HEADER
: /* Squid header parsing error */
513 case HTTP_HEADER_TOO_LARGE
:
515 case HTTP_PAYMENT_REQUIRED
:
516 case HTTP_NOT_ACCEPTABLE
:
517 case HTTP_REQUEST_TIMEOUT
:
519 case HTTP_LENGTH_REQUIRED
:
520 case HTTP_PRECONDITION_FAILED
:
521 case HTTP_REQUEST_ENTITY_TOO_LARGE
:
522 case HTTP_UNSUPPORTED_MEDIA_TYPE
:
523 case HTTP_UNPROCESSABLE_ENTITY
:
525 case HTTP_FAILED_DEPENDENCY
:
526 case HTTP_INSUFFICIENT_STORAGE
:
527 case HTTP_REQUESTED_RANGE_NOT_SATISFIABLE
:
528 case HTTP_EXPECTATION_FAILED
:
533 /* RFC 2616 section 6.1.1: an unrecognized response MUST NOT be cached. */
534 debugs (11, 3, HERE
<< "Unknown HTTP status code " << rep
->sline
.status
<< ". Not cacheable.");
546 * For Vary, store the relevant request headers as
547 * virtual headers in the reply
548 * Returns false if the variance cannot be stored
551 httpMakeVaryMark(HttpRequest
* request
, HttpReply
const * reply
)
554 const char *pos
= NULL
;
561 vary
= reply
->header
.getList(HDR_VARY
);
563 while (strListGetItem(&vary
, ',', &item
, &ilen
, &pos
)) {
564 char *name
= (char *)xmalloc(ilen
+ 1);
565 xstrncpy(name
, item
, ilen
+ 1);
568 if (strcmp(name
, "*") == 0) {
569 /* Can not handle "Vary: *" withtout ETag support */
575 strListAdd(&vstr
, name
, ',');
576 hdr
= request
->header
.getByName(name
);
578 value
= hdr
.termedBuf();
581 value
= rfc1738_escape_part(value
);
582 vstr
.append("=\"", 2);
584 vstr
.append("\"", 1);
591 #if X_ACCELERATOR_VARY
594 vary
= reply
->header
.getList(HDR_X_ACCELERATOR_VARY
);
596 while (strListGetItem(&vary
, ',', &item
, &ilen
, &pos
)) {
597 char *name
= (char *)xmalloc(ilen
+ 1);
598 xstrncpy(name
, item
, ilen
+ 1);
600 strListAdd(&vstr
, name
, ',');
601 hdr
= request
->header
.getByName(name
);
603 value
= hdr
.termedBuf();
606 value
= rfc1738_escape_part(value
);
607 vstr
.append("=\"", 2);
609 vstr
.append("\"", 1);
618 debugs(11, 3, "httpMakeVaryMark: " << vstr
);
619 return vstr
.termedBuf();
623 HttpStateData::keepaliveAccounting(HttpReply
*reply
)
627 _peer
->stats
.n_keepalives_sent
++;
629 if (reply
->keep_alive
) {
631 _peer
->stats
.n_keepalives_recv
++;
633 if (Config
.onoff
.detect_broken_server_pconns
634 && reply
->bodySize(request
->method
) == -1 && !flags
.chunked
) {
635 debugs(11, 1, "keepaliveAccounting: Impossible keep-alive header from '" << entry
->url() << "'" );
636 // debugs(11, 2, "GOT HTTP REPLY HDR:\n---------\n" << readBuf->content() << "\n----------" );
637 flags
.keepalive_broken
= 1;
643 HttpStateData::checkDateSkew(HttpReply
*reply
)
645 if (reply
->date
> -1 && !_peer
) {
646 int skew
= abs((int)(reply
->date
- squid_curtime
));
649 debugs(11, 3, "" << request
->GetHost() << "'s clock is skewed by " << skew
<< " seconds!");
654 * This creates the error page itself.. its likely
655 * that the forward ported reply header max size patch
656 * generates non http conformant error pages - in which
657 * case the errors where should be 'BAD_GATEWAY' etc
660 HttpStateData::processReplyHeader()
662 /** Creates a blank header. If this routine is made incremental, this will not do */
664 /* NP: all exit points to this function MUST call ctx_exit(ctx) */
665 Ctx ctx
= ctx_enter(entry
->mem_obj
->url
);
667 debugs(11, 3, "processReplyHeader: key '" << entry
->getMD5Text() << "'");
669 assert(!flags
.headers_parsed
);
671 if (!readBuf
->hasContent()) {
676 http_status error
= HTTP_STATUS_NONE
;
678 HttpReply
*newrep
= new HttpReply
;
679 const bool parsed
= newrep
->parse(readBuf
, eof
, &error
);
681 if (!parsed
&& readBuf
->contentSize() > 5 && strncmp(readBuf
->content(), "HTTP/", 5) != 0 && strncmp(readBuf
->content(), "ICY", 3) != 0) {
683 HttpReply
*tmprep
= new HttpReply
;
684 tmprep
->setHeaders(HTTP_OK
, "Gatewaying", NULL
, -1, -1, -1);
685 tmprep
->header
.putExt("X-Transformed-From", "HTTP/0.9");
687 newrep
->parse(mb
, eof
, &error
);
691 if (!parsed
&& error
> 0) { // unrecoverable parsing error
692 debugs(11, 3, "processReplyHeader: Non-HTTP-compliant header: '" << readBuf
->content() << "'");
693 flags
.headers_parsed
= 1;
694 newrep
->sline
.version
= HttpVersion(1,1);
695 newrep
->sline
.status
= error
;
696 HttpReply
*vrep
= setVirginReply(newrep
);
697 entry
->replaceHttpReply(vrep
);
702 if (!parsed
) { // need more data
710 debugs(11, 9, "GOT HTTP REPLY HDR:\n---------\n" << readBuf
->content() << "\n----------");
712 header_bytes_read
= headersEnd(readBuf
->content(), readBuf
->contentSize());
713 readBuf
->consume(header_bytes_read
);
716 newrep
->removeStaleWarnings();
718 if (newrep
->sline
.protocol
== PROTO_HTTP
&& newrep
->sline
.status
>= 100 && newrep
->sline
.status
< 200) {
725 if (newrep
->sline
.protocol
== PROTO_HTTP
&& newrep
->header
.chunked()) {
727 httpChunkDecoder
= new ChunkedCodingParser
;
730 if (!peerSupportsConnectionPinning())
731 orig_request
->flags
.connection_auth_disabled
= 1;
733 HttpReply
*vrep
= setVirginReply(newrep
);
734 flags
.headers_parsed
= 1;
736 keepaliveAccounting(vrep
);
740 processSurrogateControl (vrep
);
742 /** \todo IF the reply is a 1.0 reply, AND it has a Connection: Header
743 * Parse the header and remove all referenced headers
746 orig_request
->hier
.peer_reply_status
= newrep
->sline
.status
;
751 /// ignore or start forwarding the 1xx response (a.k.a., control message)
753 HttpStateData::handle1xx(HttpReply
*reply
)
755 HttpMsgPointerT
<HttpReply
> msg(reply
); // will destroy reply if unused
757 // one 1xx at a time: we must not be called while waiting for previous 1xx
758 Must(!flags
.handling1xx
);
759 flags
.handling1xx
= true;
761 if (!orig_request
->canHandle1xx()) {
762 debugs(11, 2, HERE
<< "ignoring client-unsupported 1xx");
767 #if USE_HTTP_VIOLATIONS
768 // check whether the 1xx response forwarding is allowed by squid.conf
769 if (Config
.accessList
.reply
) {
770 ACLFilledChecklist
ch(Config
.accessList
.reply
, request
, NULL
);
771 ch
.reply
= HTTPMSGLOCK(reply
);
772 if (!ch
.fastCheck()) { // TODO: support slow lookups?
773 debugs(11, 3, HERE
<< "ignoring denied 1xx");
778 #endif // USE_HTTP_VIOLATIONS
780 debugs(11, 2, HERE
<< "forwarding 1xx to client");
782 // the Sink will use this to call us back after writing 1xx to the client
783 typedef NullaryMemFunT
<HttpStateData
> CbDialer
;
784 const AsyncCall::Pointer cb
= JobCallback(11, 3, CbDialer
, this,
785 HttpStateData::proceedAfter1xx
);
786 CallJobHere1(11, 4, orig_request
->clientConnection
, ConnStateData
,
787 ConnStateData::sendControlMsg
, HttpControlMsg(msg
, cb
));
788 // If the call is not fired, then the Sink is gone, and HttpStateData
789 // will terminate due to an aborted store entry or another similar error.
790 // If we get stuck, it is not handle1xx fault if we could get stuck
791 // for similar reasons without a 1xx response.
794 /// restores state and resumes processing after 1xx is ignored or forwarded
796 HttpStateData::proceedAfter1xx()
798 Must(flags
.handling1xx
);
800 debugs(11, 2, HERE
<< "consuming " << header_bytes_read
<<
801 " header and " << reply_bytes_read
<< " body bytes read after 1xx");
802 header_bytes_read
= 0;
803 reply_bytes_read
= 0;
805 CallJobHere(11, 3, this, HttpStateData
, HttpStateData::processReply
);
810 * returns true if the peer can support connection pinning
812 bool HttpStateData::peerSupportsConnectionPinning() const
814 const HttpReply
*rep
= entry
->mem_obj
->getReply();
815 const HttpHeader
*hdr
= &rep
->header
;
822 /*If this peer does not support connection pinning (authenticated
823 connections) return false
825 if (!_peer
->connection_auth
)
828 /*The peer supports connection pinning and the http reply status
829 is not unauthorized, so the related connection can be pinned
831 if (rep
->sline
.status
!= HTTP_UNAUTHORIZED
)
834 /*The server respond with HTTP_UNAUTHORIZED and the peer configured
835 with "connection-auth=on" we know that the peer supports pinned
838 if (_peer
->connection_auth
== 1)
841 /*At this point peer has configured with "connection-auth=auto"
842 parameter so we need some extra checks to decide if we are going
843 to allow pinned connections or not
846 /*if the peer configured with originserver just allow connection
847 pinning (squid 2.6 behaviour)
849 if (_peer
->options
.originserver
)
852 /*if the connections it is already pinned it is OK*/
853 if (request
->flags
.pinned
)
856 /*Allow pinned connections only if the Proxy-support header exists in
857 reply and has in its list the "Session-Based-Authentication"
858 which means that the peer supports connection pinning.
860 if (!hdr
->has(HDR_PROXY_SUPPORT
))
863 header
= hdr
->getStrOrList(HDR_PROXY_SUPPORT
);
864 /* XXX This ought to be done in a case-insensitive manner */
865 rc
= (strstr(header
.termedBuf(), "Session-Based-Authentication") != NULL
);
870 // Called when we parsed (and possibly adapted) the headers but
871 // had not starting storing (a.k.a., sending) the body yet.
873 HttpStateData::haveParsedReplyHeaders()
875 ServerStateData::haveParsedReplyHeaders();
877 Ctx ctx
= ctx_enter(entry
->mem_obj
->url
);
878 HttpReply
*rep
= finalReply();
880 if (rep
->sline
.status
== HTTP_PARTIAL_CONTENT
&&
882 currentOffset
= rep
->content_range
->spec
.offset
;
884 entry
->timestampsSet();
886 /* Check if object is cacheable or not based on reply code */
887 debugs(11, 3, "haveParsedReplyHeaders: HTTP CODE: " << rep
->sline
.status
);
889 if (neighbors_do_private_keys
)
890 httpMaybeRemovePublic(entry
, rep
->sline
.status
);
892 if (rep
->header
.has(HDR_VARY
)
893 #if X_ACCELERATOR_VARY
894 || rep
->header
.has(HDR_X_ACCELERATOR_VARY
)
897 const char *vary
= httpMakeVaryMark(orig_request
, rep
);
900 entry
->makePrivate();
901 if (!fwd
->reforwardableStatus(rep
->sline
.status
))
902 EBIT_CLR(entry
->flags
, ENTRY_FWD_HDR_WAIT
);
906 entry
->mem_obj
->vary_headers
= xstrdup(vary
);
914 * If its not a reply that we will re-forward, then
915 * allow the client to get it.
917 if (!fwd
->reforwardableStatus(rep
->sline
.status
))
918 EBIT_CLR(entry
->flags
, ENTRY_FWD_HDR_WAIT
);
920 switch (cacheableReply()) {
927 entry
->makePrivate();
932 #if USE_HTTP_VIOLATIONS
933 if (Config
.negativeTtl
> 0)
934 entry
->cacheNegatively();
937 entry
->makePrivate();
949 if (!ignoreCacheControl
&& rep
->cache_control
) {
950 if (EBIT_TEST(rep
->cache_control
->mask
, CC_PROXY_REVALIDATE
) ||
951 EBIT_TEST(rep
->cache_control
->mask
, CC_MUST_REVALIDATE
) ||
952 EBIT_TEST(rep
->cache_control
->mask
, CC_S_MAXAGE
))
953 EBIT_SET(entry
->flags
, ENTRY_REVALIDATE
);
957 headersLog(1, 0, request
->method
, rep
);
964 HttpStateData::ConnectionStatus
965 HttpStateData::statusIfComplete() const
967 const HttpReply
*rep
= virginReply();
969 * If the reply wants to close the connection, it takes precedence */
971 if (httpHeaderHasConnDir(&rep
->header
, "close"))
972 return COMPLETE_NONPERSISTENT_MSG
;
975 * If we didn't send a keep-alive request header, then this
976 * can not be a persistent connection.
978 if (!flags
.keepalive
)
979 return COMPLETE_NONPERSISTENT_MSG
;
982 * If we haven't sent the whole request then this can not be a persistent
985 if (!flags
.request_sent
) {
986 debugs(11, 1, "statusIfComplete: Request not yet fully sent \"" << RequestMethodStr(orig_request
->method
) << " " << entry
->url() << "\"" );
987 return COMPLETE_NONPERSISTENT_MSG
;
991 * What does the reply have to say about keep-alive?
995 * If the origin server (HTTP/1.0) does not send a keep-alive
996 * header, but keeps the connection open anyway, what happens?
997 * We'll return here and http.c waits for an EOF before changing
998 * store_status to STORE_OK. Combine this with ENTRY_FWD_HDR_WAIT
999 * and an error status code, and we might have to wait until
1000 * the server times out the socket.
1002 if (!rep
->keep_alive
)
1003 return COMPLETE_NONPERSISTENT_MSG
;
1005 return COMPLETE_PERSISTENT_MSG
;
1008 HttpStateData::ConnectionStatus
1009 HttpStateData::persistentConnStatus() const
1011 debugs(11, 3, "persistentConnStatus: FD " << fd
<< " eof=" << eof
);
1012 const HttpReply
*vrep
= virginReply();
1013 debugs(11, 5, "persistentConnStatus: content_length=" << vrep
->content_length
);
1015 /* If we haven't seen the end of reply headers, we are not done */
1016 debugs(11, 5, "persistentConnStatus: flags.headers_parsed=" << flags
.headers_parsed
);
1018 if (!flags
.headers_parsed
)
1019 return INCOMPLETE_MSG
;
1021 if (eof
) // already reached EOF
1022 return COMPLETE_NONPERSISTENT_MSG
;
1025 * In chunked response we do not know the content length but we are absolutely
1026 * sure about the end of response, so we are calling the statusIfComplete to
1027 * decide if we can be persistant
1029 if (lastChunk
&& flags
.chunked
)
1030 return statusIfComplete();
1032 const int64_t clen
= vrep
->bodySize(request
->method
);
1034 debugs(11, 5, "persistentConnStatus: clen=" << clen
);
1036 /* If the body size is unknown we must wait for EOF */
1038 return INCOMPLETE_MSG
;
1041 * If the body size is known, we must wait until we've gotten all of it. */
1044 // if (entry->mem_obj->endOffset() < vrep->content_length + vrep->hdr_sz)
1045 const int64_t body_bytes_read
= reply_bytes_read
- header_bytes_read
;
1046 debugs(11,5, "persistentConnStatus: body_bytes_read=" <<
1047 body_bytes_read
<< " content_length=" << vrep
->content_length
);
1049 if (body_bytes_read
< vrep
->content_length
)
1050 return INCOMPLETE_MSG
;
1052 if (body_bytes_truncated
> 0) // already read more than needed
1053 return COMPLETE_NONPERSISTENT_MSG
; // disable pconns
1057 * If there is no message body or we got it all, we can be persistent */
1058 return statusIfComplete();
1062 * This is the callback after some data has been read from the network
1066 HttpStateData::ReadReplyWrapper(int fd, char *buf, size_t len, comm_err_t flag, int xerrno, void *data)
1068 HttpStateData *httpState = static_cast<HttpStateData *>(data);
1069 assert (fd == httpState->fd);
1070 // assert(buf == readBuf->content());
1071 PROF_start(HttpStateData_readReply);
1072 httpState->readReply(len, flag, xerrno);
1073 PROF_stop(HttpStateData_readReply);
1077 /* XXX this function is too long! */
1079 HttpStateData::readReply(const CommIoCbParams
&io
)
1085 assert(fd
== io
.fd
);
1087 flags
.do_next_read
= 0;
1089 debugs(11, 5, "httpReadReply: FD " << fd
<< ": len " << len
<< ".");
1091 // Bail out early on COMM_ERR_CLOSING - close handlers will tidy up for us
1092 if (io
.flag
== COMM_ERR_CLOSING
) {
1093 debugs(11, 3, "http socket closing");
1097 if (EBIT_TEST(entry
->flags
, ENTRY_ABORTED
)) {
1098 maybeReadVirginBody();
1102 // handle I/O errors
1103 if (io
.flag
!= COMM_OK
|| len
< 0) {
1104 debugs(11, 2, "httpReadReply: FD " << fd
<< ": read failure: " << xstrerror() << ".");
1106 if (ignoreErrno(io
.xerrno
)) {
1107 flags
.do_next_read
= 1;
1110 err
= errorCon(ERR_READ_ERROR
, HTTP_BAD_GATEWAY
, fwd
->request
);
1111 err
->xerrno
= io
.xerrno
;
1113 flags
.do_next_read
= 0;
1122 readBuf
->appended(len
);
1123 reply_bytes_read
+= len
;
1125 DelayId delayId
= entry
->mem_obj
->mostBytesAllowed();
1126 delayId
.bytesIn(len
);
1129 kb_incr(&statCounter
.server
.all
.kbytes_in
, len
);
1130 kb_incr(&statCounter
.server
.http
.kbytes_in
, len
);
1131 IOStats
.Http
.reads
++;
1133 for (clen
= len
- 1, bin
= 0; clen
; bin
++)
1136 IOStats
.Http
.read_hist
[bin
]++;
1138 // update peer response time stats (%<pt)
1139 const timeval
&sent
= orig_request
->hier
.peer_http_request_sent
;
1140 orig_request
->hier
.peer_response_time
=
1141 sent
.tv_sec
? tvSubMsec(sent
, current_time
) : -1;
1145 * Here the RFC says we should ignore whitespace between replies, but we can't as
1146 * doing so breaks HTTP/0.9 replies beginning with witespace, and in addition
1147 * the response splitting countermeasures is extremely likely to trigger on this,
1148 * not allowing connection reuse in the first place.
1151 if (!flags
.headers_parsed
&& len
> 0 && fd_table
[fd
].uses
> 1) {
1152 /* Skip whitespace between replies */
1154 while (len
> 0 && xisspace(*buf
))
1155 xmemmove(buf
, buf
+ 1, len
--);
1158 /* Continue to read... */
1159 /* Timeout NOT increased. This whitespace was from previous reply */
1160 flags
.do_next_read
= 1;
1161 maybeReadVirginBody();
1168 if (len
== 0) { // reached EOF?
1170 flags
.do_next_read
= 0;
1172 /* Bug 2879: Replies may terminate with \r\n then EOF instead of \r\n\r\n
1173 * Ensure here that we have at minimum two \r\n when EOF is seen.
1174 * TODO: Add eof parameter to headersEnd() and move this hack there.
1176 if (readBuf
->contentSize() && !flags
.headers_parsed
) {
1178 * Yes Henrik, there is a point to doing this. When we
1179 * called httpProcessReplyHeader() before, we didn't find
1180 * the end of headers, but now we are definately at EOF, so
1181 * we want to process the reply headers.
1183 /* Fake an "end-of-headers" to work around such broken servers */
1184 readBuf
->append("\r\n", 2);
1191 /// processes the already read and buffered response data, possibly after
1192 /// waiting for asynchronous 1xx control message processing
1194 HttpStateData::processReply()
1197 if (flags
.handling1xx
) { // we came back after handling a 1xx response
1198 debugs(11, 5, HERE
<< "done with 1xx handling");
1199 flags
.handling1xx
= false;
1200 Must(!flags
.headers_parsed
);
1203 if (!flags
.headers_parsed
) { // have not parsed headers yet?
1204 PROF_start(HttpStateData_processReplyHeader
);
1205 processReplyHeader();
1206 PROF_stop(HttpStateData_processReplyHeader
);
1208 if (!continueAfterParsingHeader()) // parsing error or need more data
1209 return; // TODO: send errors to ICAP
1211 adaptOrFinalizeReply();
1214 // kick more reads if needed and/or process the response body, if any
1215 PROF_start(HttpStateData_processReplyBody
);
1216 processReplyBody(); // may call serverComplete()
1217 PROF_stop(HttpStateData_processReplyBody
);
1221 \retval true if we can continue with processing the body or doing ICAP.
1224 HttpStateData::continueAfterParsingHeader()
1226 if (flags
.handling1xx
) {
1227 debugs(11, 5, HERE
<< "wait for 1xx handling");
1228 Must(!flags
.headers_parsed
);
1232 if (!flags
.headers_parsed
&& !eof
) {
1233 debugs(11, 9, HERE
<< "needs more at " << readBuf
->contentSize());
1234 flags
.do_next_read
= 1;
1235 /** \retval false If we have not finished parsing the headers and may get more data.
1236 * Schedules more reads to retrieve the missing data.
1238 maybeReadVirginBody(); // schedules all kinds of reads; TODO: rename
1242 /** If we are done with parsing, check for errors */
1244 err_type error
= ERR_NONE
;
1246 if (flags
.headers_parsed
) { // parsed headers, possibly with errors
1247 // check for header parsing errors
1248 if (HttpReply
*vrep
= virginReply()) {
1249 const http_status s
= vrep
->sline
.status
;
1250 const HttpVersion
&v
= vrep
->sline
.version
;
1251 if (s
== HTTP_INVALID_HEADER
&& v
!= HttpVersion(0,9)) {
1252 debugs(11, DBG_IMPORTANT
, "WARNING: HTTP: Invalid Response: Bad header encountered from " << entry
->url() << " AKA " << orig_request
->GetHost() << orig_request
->urlpath
.termedBuf() );
1253 error
= ERR_INVALID_RESP
;
1254 } else if (s
== HTTP_HEADER_TOO_LARGE
) {
1255 fwd
->dontRetry(true);
1256 error
= ERR_TOO_BIG
;
1258 return true; // done parsing, got reply, and no error
1261 // parsed headers but got no reply
1262 debugs(11, DBG_IMPORTANT
, "WARNING: HTTP: Invalid Response: No reply at all for " << entry
->url() << " AKA " << orig_request
->GetHost() << orig_request
->urlpath
.termedBuf() );
1263 error
= ERR_INVALID_RESP
;
1267 if (readBuf
->hasContent()) {
1268 error
= ERR_INVALID_RESP
;
1269 debugs(11, DBG_IMPORTANT
, "WARNING: HTTP: Invalid Response: Headers did not parse at all for " << entry
->url() << " AKA " << orig_request
->GetHost() << orig_request
->urlpath
.termedBuf() );
1271 error
= ERR_ZERO_SIZE_OBJECT
;
1272 debugs(11, (orig_request
->flags
.accelerated
?DBG_IMPORTANT
:2), "WARNING: HTTP: Invalid Response: No object data received for " <<
1273 entry
->url() << " AKA " << orig_request
->GetHost() << orig_request
->urlpath
.termedBuf() );
1277 assert(error
!= ERR_NONE
);
1279 fwd
->fail(errorCon(error
, HTTP_BAD_GATEWAY
, fwd
->request
));
1280 flags
.do_next_read
= 0;
1282 return false; // quit on error
1285 /** truncate what we read if we read too much so that writeReplyBody()
1286 writes no more than what we should have read */
1288 HttpStateData::truncateVirginBody()
1290 assert(flags
.headers_parsed
);
1292 HttpReply
*vrep
= virginReply();
1294 if (!vrep
->expectingBody(request
->method
, clen
) || clen
< 0)
1295 return; // no body or a body of unknown size, including chunked
1297 const int64_t body_bytes_read
= reply_bytes_read
- header_bytes_read
;
1298 if (body_bytes_read
- body_bytes_truncated
<= clen
)
1299 return; // we did not read too much or already took care of the extras
1301 if (const int64_t extras
= body_bytes_read
- body_bytes_truncated
- clen
) {
1302 // server sent more that the advertised content length
1303 debugs(11,5, HERE
<< "body_bytes_read=" << body_bytes_read
<<
1304 " clen=" << clen
<< '/' << vrep
->content_length
<<
1305 " body_bytes_truncated=" << body_bytes_truncated
<< '+' << extras
);
1307 readBuf
->truncate(extras
);
1308 body_bytes_truncated
+= extras
;
1313 * Call this when there is data from the origin server
1314 * which should be sent to either StoreEntry, or to ICAP...
1317 HttpStateData::writeReplyBody()
1319 truncateVirginBody(); // if needed
1320 const char *data
= readBuf
->content();
1321 int len
= readBuf
->contentSize();
1322 addVirginReplyBody(data
, len
);
1323 readBuf
->consume(len
);
1327 HttpStateData::decodeAndWriteReplyBody()
1329 const char *data
= NULL
;
1331 bool wasThereAnException
= false;
1332 assert(flags
.chunked
);
1333 assert(httpChunkDecoder
);
1334 SQUID_ENTER_THROWING_CODE();
1337 const bool doneParsing
= httpChunkDecoder
->parse(readBuf
,&decodedData
);
1338 len
= decodedData
.contentSize();
1339 data
=decodedData
.content();
1340 addVirginReplyBody(data
, len
);
1343 flags
.do_next_read
= 0;
1345 SQUID_EXIT_THROWING_CODE(wasThereAnException
);
1346 return wasThereAnException
;
1350 * processReplyBody has two purposes:
1351 * 1 - take the reply body data, if any, and put it into either
1352 * the StoreEntry, or give it over to ICAP.
1353 * 2 - see if we made it to the end of the response (persistent
1354 * connections and such)
1357 HttpStateData::processReplyBody()
1359 AsyncCall::Pointer call
;
1360 Ip::Address client_addr
;
1361 bool ispinned
= false;
1363 if (!flags
.headers_parsed
) {
1364 flags
.do_next_read
= 1;
1365 maybeReadVirginBody();
1370 debugs(11,5, HERE
<< "adaptationAccessCheckPending=" << adaptationAccessCheckPending
);
1371 if (adaptationAccessCheckPending
)
1377 * At this point the reply headers have been parsed and consumed.
1378 * That means header content has been removed from readBuf and
1379 * it contains only body data.
1381 if (flags
.chunked
) {
1382 if (!decodeAndWriteReplyBody()) {
1383 flags
.do_next_read
= 0;
1390 if (EBIT_TEST(entry
->flags
, ENTRY_ABORTED
)) {
1392 * The above writeReplyBody() call could ABORT this entry,
1393 * in that case, the server FD should already be closed.
1394 * there's nothing for us to do.
1398 switch (persistentConnStatus()) {
1399 case INCOMPLETE_MSG
:
1400 debugs(11, 5, "processReplyBody: INCOMPLETE_MSG");
1401 /* Wait for more data or EOF condition */
1402 if (flags
.keepalive_broken
) {
1404 commSetTimeout(fd
, 10, call
);
1407 commSetTimeout(fd
, Config
.Timeout
.read
, call
);
1410 flags
.do_next_read
= 1;
1413 case COMPLETE_PERSISTENT_MSG
:
1414 debugs(11, 5, "processReplyBody: COMPLETE_PERSISTENT_MSG");
1415 /* yes we have to clear all these! */
1417 commSetTimeout(fd
, -1, call
);
1418 flags
.do_next_read
= 0;
1420 comm_remove_close_handler(fd
, closeHandler
);
1421 closeHandler
= NULL
;
1422 fwd
->unregister(fd
);
1424 if (orig_request
->flags
.spoof_client_ip
)
1425 client_addr
= orig_request
->client_addr
;
1428 if (request
->flags
.pinned
) {
1430 } else if (request
->flags
.connection_auth
&& request
->flags
.auth_sent
) {
1434 if (orig_request
->pinnedConnection() && ispinned
) {
1435 orig_request
->pinnedConnection()->pinConnection(fd
, orig_request
, _peer
,
1436 (request
->flags
.connection_auth
!= 0));
1438 fwd
->pconnPush(fd
, _peer
, request
, orig_request
->GetHost(), client_addr
);
1446 case COMPLETE_NONPERSISTENT_MSG
:
1447 debugs(11, 5, "processReplyBody: COMPLETE_NONPERSISTENT_MSG");
1452 maybeReadVirginBody();
1456 HttpStateData::maybeReadVirginBody()
1458 // we may need to grow the buffer if headers do not fit
1459 const int minRead
= flags
.headers_parsed
? 0 :1024;
1460 const int read_size
= replyBodySpace(*readBuf
, minRead
);
1462 debugs(11,9, HERE
<< (flags
.do_next_read
? "may" : "wont") <<
1463 " read up to " << read_size
<< " bytes from FD " << fd
);
1466 * why <2? Because delayAwareRead() won't actually read if
1467 * you ask it to read 1 byte. The delayed read request
1468 * just gets re-queued until the client side drains, then
1469 * the I/O thread hangs. Better to not register any read
1470 * handler until we get a notification from someone that
1471 * its okay to read again.
1476 if (flags
.do_next_read
) {
1477 flags
.do_next_read
= 0;
1478 typedef CommCbMemFunT
<HttpStateData
, CommIoCbParams
> Dialer
;
1479 entry
->delayAwareRead(fd
, readBuf
->space(read_size
), read_size
,
1480 JobCallback(11, 5, Dialer
, this, HttpStateData::readReply
));
1484 /// called after writing the very last request byte (body, last-chunk, etc)
1486 HttpStateData::wroteLast(const CommIoCbParams
&io
)
1488 debugs(11, 5, HERE
<< "FD " << fd
<< ": size " << io
.size
<< ": errflag " << io
.flag
<< ".");
1489 #if URL_CHECKSUM_DEBUG
1491 entry
->mem_obj
->checkUrlChecksum();
1495 fd_bytes(fd
, io
.size
, FD_WRITE
);
1496 kb_incr(&statCounter
.server
.all
.kbytes_out
, io
.size
);
1497 kb_incr(&statCounter
.server
.http
.kbytes_out
, io
.size
);
1500 if (io
.flag
== COMM_ERR_CLOSING
)
1505 err
= errorCon(ERR_WRITE_ERROR
, HTTP_BAD_GATEWAY
, fwd
->request
);
1506 err
->xerrno
= io
.xerrno
;
1515 /// successfully wrote the entire request (including body, last-chunk, etc.)
1517 HttpStateData::sendComplete()
1520 * Set the read timeout here because it hasn't been set yet.
1521 * We only set the read timeout after the request has been
1522 * fully written to the server-side. If we start the timeout
1523 * after connection establishment, then we are likely to hit
1524 * the timeout for POST/PUT requests that have very large
1527 typedef CommCbMemFunT
<HttpStateData
, CommTimeoutCbParams
> TimeoutDialer
;
1528 AsyncCall::Pointer timeoutCall
= JobCallback(11, 5,
1529 TimeoutDialer
, this, HttpStateData::httpTimeout
);
1531 commSetTimeout(fd
, Config
.Timeout
.read
, timeoutCall
);
1533 flags
.request_sent
= 1;
1535 orig_request
->hier
.peer_http_request_sent
= current_time
;
1538 // Close the HTTP server connection. Used by serverComplete().
1540 HttpStateData::closeServer()
1542 debugs(11,5, HERE
<< "closing HTTP server FD " << fd
<< " this " << this);
1545 fwd
->unregister(fd
);
1546 comm_remove_close_handler(fd
, closeHandler
);
1547 closeHandler
= NULL
;
1554 HttpStateData::doneWithServer() const
1561 * Fixup authentication request headers for special cases
1564 httpFixupAuthentication(HttpRequest
* request
, HttpRequest
* orig_request
, const HttpHeader
* hdr_in
, HttpHeader
* hdr_out
, http_state_flags flags
)
1566 http_hdr_type header
= flags
.originpeer
? HDR_AUTHORIZATION
: HDR_PROXY_AUTHORIZATION
;
1568 /* Nothing to do unless we are forwarding to a peer */
1569 if (!request
->flags
.proxying
)
1572 /* Needs to be explicitly enabled */
1573 if (!orig_request
->peer_login
)
1576 /* Maybe already dealt with? */
1577 if (hdr_out
->has(header
))
1580 /* Nothing to do here for PASSTHRU */
1581 if (strcmp(orig_request
->peer_login
, "PASSTHRU") == 0)
1584 /* PROXYPASS is a special case, single-signon to servers with the proxy password (basic only) */
1585 if (flags
.originpeer
&& strcmp(orig_request
->peer_login
, "PROXYPASS") == 0 && hdr_in
->has(HDR_PROXY_AUTHORIZATION
)) {
1586 const char *auth
= hdr_in
->getStr(HDR_PROXY_AUTHORIZATION
);
1588 if (auth
&& strncasecmp(auth
, "basic ", 6) == 0) {
1589 hdr_out
->putStr(header
, auth
);
1594 /* Special mode to pass the username to the upstream cache */
1595 if (*orig_request
->peer_login
== '*') {
1597 const char *username
= "-";
1599 if (orig_request
->extacl_user
.size())
1600 username
= orig_request
->extacl_user
.termedBuf();
1601 else if (orig_request
->auth_user_request
!= NULL
)
1602 username
= orig_request
->auth_user_request
->username();
1604 snprintf(loginbuf
, sizeof(loginbuf
), "%s%s", username
, orig_request
->peer_login
+ 1);
1606 httpHeaderPutStrf(hdr_out
, header
, "Basic %s",
1607 base64_encode(loginbuf
));
1611 /* external_acl provided credentials */
1612 if (orig_request
->extacl_user
.size() && orig_request
->extacl_passwd
.size() &&
1613 (strcmp(orig_request
->peer_login
, "PASS") == 0 ||
1614 strcmp(orig_request
->peer_login
, "PROXYPASS") == 0)) {
1616 snprintf(loginbuf
, sizeof(loginbuf
), SQUIDSTRINGPH
":" SQUIDSTRINGPH
,
1617 SQUIDSTRINGPRINT(orig_request
->extacl_user
),
1618 SQUIDSTRINGPRINT(orig_request
->extacl_passwd
));
1619 httpHeaderPutStrf(hdr_out
, header
, "Basic %s",
1620 base64_encode(loginbuf
));
1624 /* Kerberos login to peer */
1625 #if HAVE_KRB5 && HAVE_GSSAPI
1626 if (strncmp(orig_request
->peer_login
, "NEGOTIATE",strlen("NEGOTIATE")) == 0) {
1628 char *PrincipalName
=NULL
,*p
;
1629 if ((p
=strchr(orig_request
->peer_login
,':')) != NULL
) {
1632 Token
= peer_proxy_negotiate_auth(PrincipalName
,request
->peer_host
);
1634 httpHeaderPutStrf(hdr_out
, HDR_PROXY_AUTHORIZATION
, "Negotiate %s",Token
);
1638 #endif /* HAVE_KRB5 && HAVE_GSSAPI */
1640 httpHeaderPutStrf(hdr_out
, header
, "Basic %s",
1641 base64_encode(orig_request
->peer_login
));
1646 * build request headers and append them to a given MemBuf
1647 * used by buildRequestPrefix()
1648 * note: initialised the HttpHeader, the caller is responsible for Clean()-ing
1651 HttpStateData::httpBuildRequestHeader(HttpRequest
* request
,
1652 HttpRequest
* orig_request
,
1654 HttpHeader
* hdr_out
,
1655 const http_state_flags flags
)
1657 /* building buffer for complex strings */
1658 #define BBUF_SZ (MAX_URL+32)
1659 LOCAL_ARRAY(char, bbuf
, BBUF_SZ
);
1660 LOCAL_ARRAY(char, ntoabuf
, MAX_IPSTRLEN
);
1661 const HttpHeader
*hdr_in
= &orig_request
->header
;
1662 const HttpHeaderEntry
*e
= NULL
;
1663 HttpHeaderPos pos
= HttpHeaderInitPos
;
1664 assert (hdr_out
->owner
== hoRequest
);
1666 /* append our IMS header */
1667 if (request
->lastmod
> -1)
1668 hdr_out
->putTime(HDR_IF_MODIFIED_SINCE
, request
->lastmod
);
1670 bool we_do_ranges
= decideIfWeDoRanges (orig_request
);
1672 String
strConnection (hdr_in
->getList(HDR_CONNECTION
));
1674 while ((e
= hdr_in
->getEntry(&pos
)))
1675 copyOneHeaderFromClientsideRequestToUpstreamRequest(e
, strConnection
, request
, orig_request
, hdr_out
, we_do_ranges
, flags
);
1677 /* Abstraction break: We should interpret multipart/byterange responses
1678 * into offset-length data, and this works around our inability to do so.
1680 if (!we_do_ranges
&& orig_request
->multipartRangeRequest()) {
1681 /* don't cache the result */
1682 orig_request
->flags
.cachable
= 0;
1683 /* pretend it's not a range request */
1684 delete orig_request
->range
;
1685 orig_request
->range
= NULL
;
1686 orig_request
->flags
.range
= 0;
1690 if (Config
.onoff
.via
) {
1692 strVia
= hdr_in
->getList(HDR_VIA
);
1693 snprintf(bbuf
, BBUF_SZ
, "%d.%d %s",
1694 orig_request
->http_ver
.major
,
1695 orig_request
->http_ver
.minor
, ThisCache
);
1696 strListAdd(&strVia
, bbuf
, ',');
1697 hdr_out
->putStr(HDR_VIA
, strVia
.termedBuf());
1701 if (orig_request
->flags
.accelerated
) {
1702 /* Append Surrogate-Capabilities */
1703 String
strSurrogate(hdr_in
->getList(HDR_SURROGATE_CAPABILITY
));
1705 snprintf(bbuf
, BBUF_SZ
, "%s=\"Surrogate/1.0 ESI/1.0\"", Config
.Accel
.surrogate_id
);
1707 snprintf(bbuf
, BBUF_SZ
, "%s=\"Surrogate/1.0\"", Config
.Accel
.surrogate_id
);
1709 strListAdd(&strSurrogate
, bbuf
, ',');
1710 hdr_out
->putStr(HDR_SURROGATE_CAPABILITY
, strSurrogate
.termedBuf());
1713 /** \pre Handle X-Forwarded-For */
1714 if (strcmp(opt_forwarded_for
, "delete") != 0) {
1716 String strFwd
= hdr_in
->getList(HDR_X_FORWARDED_FOR
);
1718 if (strFwd
.size() > 65536/2) {
1719 // There is probably a forwarding loop with Via detection disabled.
1720 // If we do nothing, String will assert on overflow soon.
1721 // TODO: Terminate all transactions with huge XFF?
1724 static int warnedCount
= 0;
1725 if (warnedCount
++ < 100) {
1726 const char *url
= entry
? entry
->url() : urlCanonical(orig_request
);
1727 debugs(11, 1, "Warning: likely forwarding loop with " << url
);
1731 if (strcmp(opt_forwarded_for
, "on") == 0) {
1732 /** If set to ON - append client IP or 'unknown'. */
1733 if ( orig_request
->client_addr
.IsNoAddr() )
1734 strListAdd(&strFwd
, "unknown", ',');
1736 strListAdd(&strFwd
, orig_request
->client_addr
.NtoA(ntoabuf
, MAX_IPSTRLEN
), ',');
1737 } else if (strcmp(opt_forwarded_for
, "off") == 0) {
1738 /** If set to OFF - append 'unknown'. */
1739 strListAdd(&strFwd
, "unknown", ',');
1740 } else if (strcmp(opt_forwarded_for
, "transparent") == 0) {
1741 /** If set to TRANSPARENT - pass through unchanged. */
1742 } else if (strcmp(opt_forwarded_for
, "truncate") == 0) {
1743 /** If set to TRUNCATE - drop existing list and replace with client IP or 'unknown'. */
1744 if ( orig_request
->client_addr
.IsNoAddr() )
1747 strFwd
= orig_request
->client_addr
.NtoA(ntoabuf
, MAX_IPSTRLEN
);
1749 if (strFwd
.size() > 0)
1750 hdr_out
->putStr(HDR_X_FORWARDED_FOR
, strFwd
.termedBuf());
1752 /** If set to DELETE - do not copy through. */
1754 /* append Host if not there already */
1755 if (!hdr_out
->has(HDR_HOST
)) {
1756 if (orig_request
->peer_domain
) {
1757 hdr_out
->putStr(HDR_HOST
, orig_request
->peer_domain
);
1758 } else if (orig_request
->port
== urlDefaultPort(orig_request
->protocol
)) {
1759 /* use port# only if not default */
1760 hdr_out
->putStr(HDR_HOST
, orig_request
->GetHost());
1762 httpHeaderPutStrf(hdr_out
, HDR_HOST
, "%s:%d",
1763 orig_request
->GetHost(),
1764 (int) orig_request
->port
);
1768 /* append Authorization if known in URL, not in header and going direct */
1769 if (!hdr_out
->has(HDR_AUTHORIZATION
)) {
1770 if (!request
->flags
.proxying
&& *request
->login
) {
1771 httpHeaderPutStrf(hdr_out
, HDR_AUTHORIZATION
, "Basic %s",
1772 base64_encode(request
->login
));
1776 /* Fixup (Proxy-)Authorization special cases. Plain relaying dealt with above */
1777 httpFixupAuthentication(request
, orig_request
, hdr_in
, hdr_out
, flags
);
1779 /* append Cache-Control, add max-age if not there already */
1781 HttpHdrCc
*cc
= hdr_in
->getCc();
1784 cc
= httpHdrCcCreate();
1786 #if 0 /* see bug 2330 */
1787 /* Set no-cache if determined needed but not found */
1788 if (orig_request
->flags
.nocache
)
1789 EBIT_SET(cc
->mask
, CC_NO_CACHE
);
1792 /* Add max-age only without no-cache */
1793 if (!EBIT_TEST(cc
->mask
, CC_MAX_AGE
) && !EBIT_TEST(cc
->mask
, CC_NO_CACHE
)) {
1795 entry
? entry
->url() : urlCanonical(orig_request
);
1796 httpHdrCcSetMaxAge(cc
, getMaxAge(url
));
1798 if (request
->urlpath
.size())
1799 assert(strstr(url
, request
->urlpath
.termedBuf()));
1802 /* Enforce sibling relations */
1803 if (flags
.only_if_cached
)
1804 EBIT_SET(cc
->mask
, CC_ONLY_IF_CACHED
);
1808 httpHdrCcDestroy(cc
);
1811 /* maybe append Connection: keep-alive */
1812 if (flags
.keepalive
) {
1813 hdr_out
->putStr(HDR_CONNECTION
, "keep-alive");
1816 /* append Front-End-Https */
1817 if (flags
.front_end_https
) {
1818 if (flags
.front_end_https
== 1 || request
->protocol
== PROTO_HTTPS
)
1819 hdr_out
->putStr(HDR_FRONT_END_HTTPS
, "On");
1822 if (flags
.chunked_request
) {
1823 // Do not just copy the original value so that if the client-side
1824 // starts decode other encodings, this code may remain valid.
1825 hdr_out
->putStr(HDR_TRANSFER_ENCODING
, "chunked");
1828 /* Now mangle the headers. */
1829 if (Config2
.onoff
.mangle_request_headers
)
1830 httpHdrMangleList(hdr_out
, request
, ROR_REQUEST
);
1832 strConnection
.clean();
1836 * Decides whether a particular header may be cloned from the received Clients request
1837 * to our outgoing fetch request.
1840 copyOneHeaderFromClientsideRequestToUpstreamRequest(const HttpHeaderEntry
*e
, const String strConnection
, HttpRequest
* request
, const HttpRequest
* orig_request
, HttpHeader
* hdr_out
, const int we_do_ranges
, const http_state_flags flags
)
1842 debugs(11, 5, "httpBuildRequestHeader: " << e
->name
<< ": " << e
->value
);
1846 /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid should not pass on. */
1848 case HDR_PROXY_AUTHORIZATION
:
1849 /** \par Proxy-Authorization:
1850 * Only pass on proxy authentication to peers for which
1851 * authentication forwarding is explicitly enabled
1853 if (!flags
.originpeer
&& flags
.proxying
&& orig_request
->peer_login
&&
1854 (strcmp(orig_request
->peer_login
, "PASS") == 0 ||
1855 strcmp(orig_request
->peer_login
, "PROXYPASS") == 0 ||
1856 strcmp(orig_request
->peer_login
, "PASSTHRU") == 0)) {
1857 hdr_out
->addEntry(e
->clone());
1861 /** \par RFC 2616 sect 13.5.1 - Hop-by-Hop headers which Squid does not pass on. */
1863 case HDR_CONNECTION
: /** \par Connection: */
1864 case HDR_TE
: /** \par TE: */
1865 case HDR_KEEP_ALIVE
: /** \par Keep-Alive: */
1866 case HDR_PROXY_AUTHENTICATE
: /** \par Proxy-Authenticate: */
1867 case HDR_TRAILER
: /** \par Trailer: */
1868 case HDR_UPGRADE
: /** \par Upgrade: */
1869 case HDR_TRANSFER_ENCODING
: /** \par Transfer-Encoding: */
1873 /** \par OTHER headers I haven't bothered to track down yet. */
1875 case HDR_AUTHORIZATION
:
1876 /** \par WWW-Authorization:
1877 * Pass on WWW authentication */
1879 if (!flags
.originpeer
) {
1880 hdr_out
->addEntry(e
->clone());
1882 /** \note In accelerators, only forward authentication if enabled
1883 * (see also httpFixupAuthentication for special cases)
1885 if (orig_request
->peer_login
&&
1886 (strcmp(orig_request
->peer_login
, "PASS") == 0 ||
1887 strcmp(orig_request
->peer_login
, "PASSTHRU") == 0 ||
1888 strcmp(orig_request
->peer_login
, "PROXYPASS") == 0)) {
1889 hdr_out
->addEntry(e
->clone());
1897 * Normally Squid rewrites the Host: header.
1898 * However, there is one case when we don't: If the URL
1899 * went through our redirector and the admin configured
1900 * 'redir_rewrites_host' to be off.
1902 if (orig_request
->peer_domain
)
1903 hdr_out
->putStr(HDR_HOST
, orig_request
->peer_domain
);
1904 else if (request
->flags
.redirected
&& !Config
.onoff
.redir_rewrites_host
)
1905 hdr_out
->addEntry(e
->clone());
1907 /* use port# only if not default */
1909 if (orig_request
->port
== urlDefaultPort(orig_request
->protocol
)) {
1910 hdr_out
->putStr(HDR_HOST
, orig_request
->GetHost());
1912 httpHeaderPutStrf(hdr_out
, HDR_HOST
, "%s:%d",
1913 orig_request
->GetHost(),
1914 (int) orig_request
->port
);
1920 case HDR_IF_MODIFIED_SINCE
:
1921 /** \par If-Modified-Since:
1922 * append unless we added our own;
1923 * \note at most one client's ims header can pass through */
1925 if (!hdr_out
->has(HDR_IF_MODIFIED_SINCE
))
1926 hdr_out
->addEntry(e
->clone());
1930 case HDR_MAX_FORWARDS
:
1931 /** \par Max-Forwards:
1932 * pass only on TRACE or OPTIONS requests */
1933 if (orig_request
->method
== METHOD_TRACE
|| orig_request
->method
== METHOD_OPTIONS
) {
1934 const int64_t hops
= e
->getInt64();
1937 hdr_out
->putInt64(HDR_MAX_FORWARDS
, hops
- 1);
1944 * If Via is disabled then forward any received header as-is.
1945 * Otherwise leave for explicit updated addition later. */
1947 if (!Config
.onoff
.via
)
1948 hdr_out
->addEntry(e
->clone());
1956 case HDR_REQUEST_RANGE
:
1957 /** \par Range:, If-Range:, Request-Range:
1958 * Only pass if we accept ranges */
1960 hdr_out
->addEntry(e
->clone());
1964 case HDR_PROXY_CONNECTION
: // SHOULD ignore. But doing so breaks things.
1967 case HDR_X_FORWARDED_FOR
:
1969 case HDR_CACHE_CONTROL
:
1970 /** \par X-Forwarded-For:, Cache-Control:
1971 * handled specially by Squid, so leave off for now.
1972 * append these after the loop if needed */
1975 case HDR_FRONT_END_HTTPS
:
1976 /** \par Front-End-Https:
1977 * Pass thru only if peer is configured with front-end-https */
1978 if (!flags
.front_end_https
)
1979 hdr_out
->addEntry(e
->clone());
1985 * pass on all other header fields
1986 * which are NOT listed by the special Connection: header. */
1988 if (strConnection
.size()>0 && strListIsMember(&strConnection
, e
->name
.termedBuf(), ',')) {
1989 debugs(11, 2, "'" << e
->name
<< "' header cropped by Connection: definition");
1993 hdr_out
->addEntry(e
->clone());
1998 HttpStateData::decideIfWeDoRanges (HttpRequest
* orig_request
)
2001 /* decide if we want to do Ranges ourselves
2002 * and fetch the whole object now)
2003 * We want to handle Ranges ourselves iff
2004 * - we can actually parse client Range specs
2005 * - the specs are expected to be simple enough (e.g. no out-of-order ranges)
2006 * - reply will be cachable
2007 * (If the reply will be uncachable we have to throw it away after
2008 * serving this request, so it is better to forward ranges to
2009 * the server and fetch only the requested content)
2012 int64_t roffLimit
= orig_request
->getRangeOffsetLimit();
2014 if (NULL
== orig_request
->range
|| !orig_request
->flags
.cachable
2015 || orig_request
->range
->offsetLimitExceeded(roffLimit
) || orig_request
->flags
.connection_auth
)
2018 debugs(11, 8, "decideIfWeDoRanges: range specs: " <<
2019 orig_request
->range
<< ", cachable: " <<
2020 orig_request
->flags
.cachable
<< "; we_do_ranges: " << result
);
2025 /* build request prefix and append it to a given MemBuf;
2026 * return the length of the prefix */
2028 HttpStateData::buildRequestPrefix(HttpRequest
* aRequest
,
2029 HttpRequest
* original_request
,
2030 StoreEntry
* sentry
,
2033 const int offset
= mb
->size
;
2034 HttpVersion
httpver(1,1);
2035 mb
->Printf("%s %s HTTP/%d.%d\r\n",
2036 RequestMethodStr(aRequest
->method
),
2037 aRequest
->urlpath
.size() ? aRequest
->urlpath
.termedBuf() : "/",
2038 httpver
.major
,httpver
.minor
);
2039 /* build and pack headers */
2041 HttpHeader
hdr(hoRequest
);
2043 httpBuildRequestHeader(aRequest
, original_request
, sentry
, &hdr
, flags
);
2045 if (aRequest
->flags
.pinned
&& aRequest
->flags
.connection_auth
)
2046 aRequest
->flags
.auth_sent
= 1;
2047 else if (hdr
.has(HDR_AUTHORIZATION
))
2048 aRequest
->flags
.auth_sent
= 1;
2050 packerToMemInit(&p
, mb
);
2055 /* append header terminator */
2056 mb
->append(crlf
, 2);
2057 return mb
->size
- offset
;
2060 /* This will be called when connect completes. Write request. */
2062 HttpStateData::sendRequest()
2066 debugs(11, 5, "httpSendRequest: FD " << fd
<< ", request " << request
<< ", this " << this << ".");
2069 debugs(11,3, HERE
<< "cannot send request to closing FD " << fd
);
2070 assert(closeHandler
!= NULL
);
2074 typedef CommCbMemFunT
<HttpStateData
, CommTimeoutCbParams
> TimeoutDialer
;
2075 AsyncCall::Pointer timeoutCall
= JobCallback(11, 5,
2076 TimeoutDialer
, this, HttpStateData::httpTimeout
);
2077 commSetTimeout(fd
, Config
.Timeout
.lifetime
, timeoutCall
);
2078 flags
.do_next_read
= 1;
2079 maybeReadVirginBody();
2081 if (orig_request
->body_pipe
!= NULL
) {
2082 if (!startRequestBodyFlow()) // register to receive body data
2084 typedef CommCbMemFunT
<HttpStateData
, CommIoCbParams
> Dialer
;
2085 requestSender
= JobCallback(11,5,
2086 Dialer
, this, HttpStateData::sentRequestBody
);
2088 Must(!flags
.chunked_request
);
2089 // Preserve original chunked encoding unless we learned the length.
2090 if (orig_request
->header
.chunked() && orig_request
->content_length
< 0)
2091 flags
.chunked_request
= 1;
2093 assert(!requestBodySource
);
2094 typedef CommCbMemFunT
<HttpStateData
, CommIoCbParams
> Dialer
;
2095 requestSender
= JobCallback(11,5,
2096 Dialer
, this, HttpStateData::wroteLast
);
2099 if (_peer
!= NULL
) {
2100 if (_peer
->options
.originserver
) {
2102 flags
.originpeer
= 1;
2105 flags
.originpeer
= 0;
2109 flags
.originpeer
= 0;
2113 * Is keep-alive okay for all request methods?
2115 if (orig_request
->flags
.must_keepalive
)
2116 flags
.keepalive
= 1;
2117 else if (!Config
.onoff
.server_pconns
)
2118 flags
.keepalive
= 0;
2119 else if (_peer
== NULL
)
2120 flags
.keepalive
= 1;
2121 else if (_peer
->stats
.n_keepalives_sent
< 10)
2122 flags
.keepalive
= 1;
2123 else if ((double) _peer
->stats
.n_keepalives_recv
/
2124 (double) _peer
->stats
.n_keepalives_sent
> 0.50)
2125 flags
.keepalive
= 1;
2128 if (neighborType(_peer
, request
) == PEER_SIBLING
&&
2129 !_peer
->options
.allow_miss
)
2130 flags
.only_if_cached
= 1;
2132 flags
.front_end_https
= _peer
->front_end_https
;
2136 request
->peer_host
=_peer
?_peer
->host
:NULL
;
2137 buildRequestPrefix(request
, orig_request
, entry
, &mb
);
2138 debugs(11, 6, "httpSendRequest: FD " << fd
<< ":\n" << mb
.buf
);
2139 Comm::Write(fd
, &mb
, requestSender
);
2145 HttpStateData::getMoreRequestBody(MemBuf
&buf
)
2147 // parent's implementation can handle the no-encoding case
2148 if (!flags
.chunked_request
)
2149 return ServerStateData::getMoreRequestBody(buf
);
2153 Must(requestBodySource
!= NULL
);
2154 if (!requestBodySource
->getMoreData(raw
))
2155 return false; // no request body bytes to chunk yet
2157 // optimization: pre-allocate buffer size that should be enough
2158 const mb_size_t rawDataSize
= raw
.contentSize();
2159 // we may need to send: hex-chunk-size CRLF raw-data CRLF last-chunk
2160 buf
.init(16 + 2 + rawDataSize
+ 2 + 5, raw
.max_capacity
);
2162 buf
.Printf("%x\r\n", static_cast<unsigned int>(rawDataSize
));
2163 buf
.append(raw
.content(), rawDataSize
);
2166 Must(rawDataSize
> 0); // we did not accidently created last-chunk above
2168 // Do not send last-chunk unless we successfully received everything
2169 if (receivedWholeRequestBody
) {
2170 Must(!flags
.sentLastChunk
);
2171 flags
.sentLastChunk
= true;
2172 buf
.append("0\r\n\r\n", 5);
2179 httpStart(FwdState
*fwd
)
2181 debugs(11, 3, "httpStart: \"" << RequestMethodStr(fwd
->request
->method
) << " " << fwd
->entry
->url() << "\"" );
2182 HttpStateData
*httpState
= new HttpStateData(fwd
);
2184 if (!httpState
->sendRequest()) {
2185 debugs(11, 3, "httpStart: aborted");
2190 statCounter
.server
.all
.requests
++;
2191 statCounter
.server
.http
.requests
++;
2194 * We used to set the read timeout here, but not any more.
2195 * Now its set in httpSendComplete() after the full request,
2196 * including request body, has been written to the server.
2200 /// if broken posts are enabled for the request, try to fix and return true
2202 HttpStateData::finishingBrokenPost()
2204 #if USE_HTTP_VIOLATIONS
2205 if (!Config
.accessList
.brokenPosts
) {
2206 debugs(11, 5, HERE
<< "No brokenPosts list");
2210 ACLFilledChecklist
ch(Config
.accessList
.brokenPosts
, request
, NULL
);
2211 if (!ch
.fastCheck()) {
2212 debugs(11, 5, HERE
<< "didn't match brokenPosts");
2217 debugs(11,2, HERE
<< "ignoring broken POST for closing FD " << fd
);
2218 assert(closeHandler
!= NULL
);
2219 return true; // prevent caller from proceeding as if nothing happened
2222 debugs(11, 2, "finishingBrokenPost: fixing broken POST");
2223 typedef CommCbMemFunT
<HttpStateData
, CommIoCbParams
> Dialer
;
2224 requestSender
= JobCallback(11,5,
2225 Dialer
, this, HttpStateData::wroteLast
);
2226 Comm::Write(fd
, "\r\n", 2, requestSender
, NULL
);
2230 #endif /* USE_HTTP_VIOLATIONS */
2233 /// if needed, write last-chunk to end the request body and return true
2235 HttpStateData::finishingChunkedRequest()
2237 if (flags
.sentLastChunk
) {
2238 debugs(11, 5, HERE
<< "already sent last-chunk");
2242 Must(receivedWholeRequestBody
); // or we should not be sending last-chunk
2243 flags
.sentLastChunk
= true;
2245 typedef CommCbMemFunT
<HttpStateData
, CommIoCbParams
> Dialer
;
2246 requestSender
= JobCallback(11,5,
2247 Dialer
, this, HttpStateData::wroteLast
);
2248 Comm::Write(fd
, "0\r\n\r\n", 5, requestSender
, NULL
);
2253 HttpStateData::doneSendingRequestBody()
2255 ServerStateData::doneSendingRequestBody();
2256 debugs(11,5, HERE
<< "doneSendingRequestBody: FD " << fd
);
2258 // do we need to write something after the last body byte?
2259 if (flags
.chunked_request
&& finishingChunkedRequest())
2261 if (!flags
.chunked_request
&& finishingBrokenPost())
2267 // more origin request body data is available
2269 HttpStateData::handleMoreRequestBodyAvailable()
2271 if (eof
|| fd
< 0) {
2272 // XXX: we should check this condition in other callbacks then!
2273 // TODO: Check whether this can actually happen: We should unsubscribe
2274 // as a body consumer when the above condition(s) are detected.
2275 debugs(11, 1, HERE
<< "Transaction aborted while reading HTTP body");
2279 assert(requestBodySource
!= NULL
);
2281 if (requestBodySource
->buf().hasContent()) {
2282 // XXX: why does not this trigger a debug message on every request?
2284 if (flags
.headers_parsed
&& !flags
.abuse_detected
) {
2285 flags
.abuse_detected
= 1;
2286 debugs(11, 1, "http handleMoreRequestBodyAvailable: Likely proxy abuse detected '" << orig_request
->client_addr
<< "' -> '" << entry
->url() << "'" );
2288 if (virginReply()->sline
.status
== HTTP_INVALID_HEADER
) {
2295 HttpStateData::handleMoreRequestBodyAvailable();
2298 // premature end of the request body
2300 HttpStateData::handleRequestBodyProducerAborted()
2302 ServerStateData::handleRequestBodyProducerAborted();
2303 if (entry
->isEmpty()) {
2304 debugs(11, 3, "request body aborted: FD " << fd
);
2306 err
= errorCon(ERR_READ_ERROR
, HTTP_BAD_GATEWAY
, fwd
->request
);
2307 err
->xerrno
= errno
;
2311 abortTransaction("request body producer aborted");
2314 // called when we wrote request headers(!) or a part of the body
2316 HttpStateData::sentRequestBody(const CommIoCbParams
&io
)
2319 kb_incr(&statCounter
.server
.http
.kbytes_out
, io
.size
);
2321 ServerStateData::sentRequestBody(io
);
2324 // Quickly abort the transaction
2325 // TODO: destruction should be sufficient as the destructor should cleanup,
2326 // including canceling close handlers
2328 HttpStateData::abortTransaction(const char *reason
)
2330 debugs(11,5, HERE
<< "aborting transaction for " << reason
<<
2331 "; FD " << fd
<< ", this " << this);
2338 fwd
->handleUnregisteredServerEnd();
2339 deleteThis("HttpStateData::abortTransaction");
2343 HttpStateData::originalRequest()
2345 return orig_request
;