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924f73bc | 1 | |
2 | /* | |
f169ddc4 | 3 | * $Id: ESIInclude.cc,v 1.11 2006/09/03 04:15:54 robertc Exp $ |
924f73bc | 4 | * |
5 | * DEBUG: section 86 ESI processing | |
6 | * AUTHOR: Robert Collins | |
7 | * | |
8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
9 | * ---------------------------------------------------------- | |
10 | * | |
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. | |
19 | * | |
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. | |
24 | * | |
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. | |
29 | * | |
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. | |
33 | * | |
34 | * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org> | |
35 | */ | |
36 | ||
37 | #include "squid.h" | |
38 | #include "ESIInclude.h" | |
39 | #include "ESIVarState.h" | |
40 | #include "client_side_request.h" | |
41 | #include "HttpReply.h" | |
42 | ||
43 | CBDATA_CLASS_INIT (ESIStreamContext); | |
44 | ||
924f73bc | 45 | /* other */ |
46 | static CSCB esiBufferRecipient; | |
47 | static CSD esiBufferDetach; | |
48 | /* esiStreamContext */ | |
49 | static ESIStreamContext *ESIStreamContextNew (ESIIncludePtr); | |
50 | ||
51 | /* ESI TO CONSIDER: | |
52 | * 1. retry failed upstream requests | |
53 | */ | |
54 | ||
55 | /* Detach from a buffering stream | |
56 | */ | |
57 | void | |
59a1efb2 | 58 | esiBufferDetach (clientStreamNode *node, ClientHttpRequest *http) |
924f73bc | 59 | { |
60 | /* Detach ourselves */ | |
61 | clientStreamDetach (node, http); | |
62 | } | |
63 | ||
64 | /* | |
65 | * Write a chunk of data to a client 'socket'. | |
66 | * If the reply is present, send the reply headers down the wire too, | |
67 | * and clean them up when finished. | |
68 | * Pre-condition: | |
69 | * The request is an internal ESI subrequest. | |
70 | * data context is not NULL | |
71 | * There are no more entries in the stream chain. | |
72 | */ | |
73 | void | |
59a1efb2 | 74 | esiBufferRecipient (clientStreamNode *node, ClientHttpRequest *http, HttpReply *rep, StoreIOBuffer recievedData) |
924f73bc | 75 | { |
76 | /* Test preconditions */ | |
77 | assert (node != NULL); | |
78 | /* ESI TODO: handle thisNode rather than asserting | |
79 | * - it should only ever happen if we cause an | |
80 | * abort and the callback chain loops back to | |
81 | * here, so we can simply return. However, that | |
82 | * itself shouldn't happen, so it stays as an | |
83 | * assert for now. */ | |
84 | assert (cbdataReferenceValid (node)); | |
85 | assert (node->node.next == NULL); | |
86 | assert (http->getConn().getRaw() == NULL); | |
87 | ||
88 | ESIStreamContext::Pointer esiStream = dynamic_cast<ESIStreamContext *>(node->data.getRaw()); | |
89 | assert (esiStream.getRaw() != NULL); | |
90 | /* If segments become more flexible, ignore thisNode */ | |
91 | assert (recievedData.length <= sizeof(esiStream->localbuffer->buf)); | |
92 | assert (!esiStream->finished); | |
93 | ||
137a13ea | 94 | debugs (86,5, "esiBufferRecipient rep " << rep << " body " << recievedData.data << " len " << recievedData.length); |
924f73bc | 95 | assert (node->readBuffer.offset == recievedData.offset || recievedData.length == 0); |
96 | ||
97 | /* trivial case */ | |
98 | ||
99 | if (http->out.offset != 0) { | |
100 | assert(rep == NULL); | |
101 | } else { | |
102 | if (rep) { | |
103 | if (rep->sline.status != HTTP_OK) { | |
06a5ae20 | 104 | delete rep; |
924f73bc | 105 | rep = NULL; |
106 | esiStream->include->fail (esiStream); | |
107 | esiStream->finished = 1; | |
108 | httpRequestFree (http); | |
109 | return; | |
110 | } | |
111 | ||
112 | #if HEADERS_LOG | |
113 | /* should be done in the store rather than every recipient? */ | |
114 | headersLog(0, 0, http->request->method, rep); | |
115 | ||
116 | #endif | |
117 | ||
f169ddc4 | 118 | /* delete rep; 2006/09/02: TS, #975 |
119 | * | |
120 | * This was causing double-deletes. Its possible that not deleting | |
121 | * it here will cause memory leaks, but if so, this delete should | |
122 | * not be reinstated or it will trigger bug #975 again - RBC | |
123 | * 20060903 | |
124 | */ | |
924f73bc | 125 | |
126 | rep = NULL; | |
127 | } | |
128 | } | |
129 | ||
130 | if (recievedData.data && recievedData.length) { | |
131 | http->out.offset += recievedData.length; | |
132 | ||
133 | if (recievedData.data >= esiStream->localbuffer->buf && | |
134 | recievedData.data < &esiStream->localbuffer->buf[sizeof(esiStream->localbuffer->buf)]) { | |
135 | /* original static buffer */ | |
136 | ||
137 | if (recievedData.data != esiStream->localbuffer->buf) { | |
138 | /* But not the start of it */ | |
139 | xmemmove (esiStream->localbuffer->buf, recievedData.data, recievedData.length); | |
140 | } | |
141 | ||
142 | esiStream->localbuffer->len = recievedData.length; | |
143 | } else { | |
144 | assert (esiStream->buffer.getRaw() != NULL); | |
145 | esiStream->buffer->len = recievedData.length; | |
146 | } | |
147 | } | |
148 | ||
149 | /* EOF / Read error / aborted entry */ | |
150 | if (rep == NULL && recievedData.data == NULL && recievedData.length == 0) { | |
151 | /* TODO: get stream status to test the entry for aborts */ | |
152 | debug (86,5)("Finished reading upstream data in subrequest\n"); | |
153 | esiStream->include->subRequestDone (esiStream, true); | |
154 | esiStream->finished = 1; | |
155 | httpRequestFree (http); | |
156 | return; | |
157 | } | |
158 | ||
159 | ||
160 | /* after the write to the user occurs, (ie here, or in a callback) | |
161 | * we call */ | |
162 | if (clientHttpRequestStatus(-1, http)) { | |
163 | /* TODO: Does thisNode if block leak htto ? */ | |
164 | /* XXX when reviewing ESI this is the first place to look */ | |
165 | node->data = NULL; | |
166 | esiStream->finished = 1; | |
167 | esiStream->include->fail (esiStream); | |
168 | return; | |
169 | }; | |
170 | ||
171 | switch (clientStreamStatus (node, http)) { | |
172 | ||
173 | case STREAM_UNPLANNED_COMPLETE: /* fallthru ok */ | |
174 | ||
175 | case STREAM_COMPLETE: /* ok */ | |
176 | debug (86,3)("ESI subrequest finished OK\n"); | |
177 | esiStream->include->subRequestDone (esiStream, true); | |
178 | esiStream->finished = 1; | |
179 | httpRequestFree (http); | |
180 | return; | |
181 | ||
182 | case STREAM_FAILED: | |
183 | debug (86,1)("ESI subrequest failed transfer\n"); | |
184 | esiStream->include->fail (esiStream); | |
185 | esiStream->finished = 1; | |
186 | httpRequestFree (http); | |
187 | return; | |
188 | ||
189 | case STREAM_NONE: { | |
190 | StoreIOBuffer tempBuffer; | |
191 | ||
192 | if (!esiStream->buffer.getRaw()) { | |
193 | esiStream->buffer = esiStream->localbuffer; | |
194 | } | |
195 | ||
196 | esiStream->buffer = esiStream->buffer->tail(); | |
197 | ||
198 | if (esiStream->buffer->len) { | |
199 | esiStream->buffer->next = new ESISegment; | |
200 | esiStream->buffer = esiStream->buffer->next; | |
201 | } | |
202 | ||
203 | tempBuffer.offset = http->out.offset; | |
204 | tempBuffer.length = sizeof (esiStream->buffer->buf); | |
205 | tempBuffer.data = esiStream->buffer->buf; | |
206 | /* now just read into 'buffer' */ | |
207 | clientStreamRead (node, | |
208 | http, tempBuffer); | |
209 | debug (86,5)("esiBufferRecipient: Requested more data for ESI subrequest\n"); | |
210 | } | |
211 | ||
212 | break; | |
213 | ||
214 | default: | |
215 | fatal ("Hit unreachable code in esiBufferRecipient\n"); | |
216 | } | |
217 | ||
218 | } | |
219 | ||
220 | /* esiStream functions */ | |
221 | ESIStreamContext::~ESIStreamContext() | |
222 | { | |
223 | assert (this); | |
224 | freeResources(); | |
225 | } | |
226 | ||
227 | void | |
228 | ESIStreamContext::freeResources() | |
229 | { | |
230 | debug (86,5)("Freeing stream context resources.\n"); | |
231 | buffer = NULL; | |
232 | localbuffer = NULL; | |
233 | include = NULL; | |
234 | } | |
235 | ||
236 | void * | |
237 | ESIStreamContext::operator new(size_t byteCount) | |
238 | { | |
239 | assert (byteCount == sizeof (ESIStreamContext)); | |
240 | CBDATA_INIT_TYPE(ESIStreamContext); | |
241 | ESIStreamContext *result = cbdataAlloc(ESIStreamContext); | |
924f73bc | 242 | return result; |
243 | } | |
244 | ||
245 | void | |
246 | ESIStreamContext::operator delete (void *address) | |
247 | { | |
248 | ESIStreamContext *t = static_cast<ESIStreamContext *>(address); | |
249 | cbdataFree(t); | |
924f73bc | 250 | } |
251 | ||
924f73bc | 252 | ESIStreamContext * |
253 | ESIStreamContextNew (ESIIncludePtr include) | |
254 | { | |
255 | ESIStreamContext *rv = new ESIStreamContext; | |
256 | rv->include = include; | |
257 | return rv; | |
258 | } | |
259 | ||
260 | ||
261 | ||
262 | /* ESIInclude */ | |
263 | ESIInclude::~ESIInclude() | |
264 | { | |
265 | debug (86,5)("ESIInclude::Free %p\n", this); | |
266 | ESISegmentFreeList (srccontent); | |
267 | ESISegmentFreeList (altcontent); | |
268 | cbdataReferenceDone (varState); | |
269 | safe_free (srcurl); | |
270 | safe_free (alturl); | |
271 | } | |
272 | ||
273 | void | |
274 | ESIInclude::finish() | |
275 | { | |
276 | parent = NULL; | |
277 | } | |
278 | ||
924f73bc | 279 | ESIElement::Pointer |
280 | ESIInclude::makeCacheable() const | |
281 | { | |
282 | return new ESIInclude (*this); | |
283 | } | |
284 | ||
285 | ESIElement::Pointer | |
286 | ESIInclude::makeUsable(esiTreeParentPtr newParent, ESIVarState &newVarState) const | |
287 | { | |
288 | ESIInclude *resultI = new ESIInclude (*this); | |
289 | ESIElement::Pointer result = resultI; | |
290 | resultI->parent = newParent; | |
291 | resultI->varState = cbdataReference (&newVarState); | |
292 | ||
293 | if (resultI->srcurl) | |
294 | resultI->src = ESIStreamContextNew (resultI); | |
295 | ||
296 | if (resultI->alturl) | |
297 | resultI->alt = ESIStreamContextNew (resultI); | |
298 | ||
299 | return result; | |
300 | } | |
301 | ||
302 | ESIInclude::ESIInclude(ESIInclude const &old) : parent (NULL), started (false), sent (false) | |
303 | { | |
304 | varState = NULL; | |
305 | flags.onerrorcontinue = old.flags.onerrorcontinue; | |
306 | ||
307 | if (old.srcurl) | |
308 | srcurl = xstrdup (old.srcurl); | |
309 | ||
310 | if (old.alturl) | |
311 | alturl = xstrdup (old.alturl); | |
312 | } | |
313 | ||
314 | void | |
315 | ESIInclude::prepareRequestHeaders(HttpHeader &tempheaders, ESIVarState *vars) | |
316 | { | |
924f73bc | 317 | tempheaders.update (&vars->header(), NULL); |
318 | tempheaders.removeConnectionHeaderEntries(); | |
319 | } | |
320 | ||
321 | ||
322 | void | |
323 | ESIInclude::Start (ESIStreamContext::Pointer stream, char const *url, ESIVarState *vars) | |
324 | { | |
924f73bc | 325 | if (!stream.getRaw()) |
326 | return; | |
327 | ||
818c6c9e | 328 | HttpHeader tempheaders(hoRequest); |
329 | ||
924f73bc | 330 | prepareRequestHeaders(tempheaders, vars); |
331 | ||
332 | /* Ensure variable state is clean */ | |
333 | vars->feedData(url, strlen (url)); | |
334 | ||
335 | /* tempUrl is eaten by the request */ | |
336 | char const *tempUrl = vars->extractChar (); | |
337 | ||
338 | debug (86,5)("ESIIncludeStart: Starting subrequest with url '%s'\n", tempUrl); | |
339 | ||
340 | if (clientBeginRequest(METHOD_GET, tempUrl, esiBufferRecipient, esiBufferDetach, stream.getRaw(), &tempheaders, stream->localbuffer->buf, HTTP_REQBUF_SZ)) { | |
341 | debug (86,0) ("starting new ESI subrequest failed\n"); | |
342 | } | |
343 | ||
519e0948 | 344 | tempheaders.clean(); |
924f73bc | 345 | } |
346 | ||
347 | ESIInclude::ESIInclude (esiTreeParentPtr aParent, int attrcount, char const **attr, ESIContext *aContext) : parent (aParent), started (false), sent (false) | |
348 | { | |
349 | int i; | |
350 | assert (aContext); | |
351 | ||
352 | for (i = 0; i < attrcount && attr[i]; i += 2) { | |
353 | if (!strcmp(attr[i],"src")) { | |
354 | /* Start a request for thisNode url */ | |
355 | debug (86,5)("ESIIncludeNew: Requesting source '%s'\n",attr[i+1]); | |
356 | /* TODO: don't assert on thisNode, ignore the duplicate */ | |
357 | assert (src.getRaw() == NULL); | |
358 | src = ESIStreamContextNew (this); | |
359 | assert (src.getRaw() != NULL); | |
360 | srcurl = xstrdup ( attr[i+1]); | |
361 | } else if (!strcmp(attr[i],"alt")) { | |
362 | /* Start a secondary request for thisNode url */ | |
363 | /* TODO: make a config parameter to wait on requesting alt's | |
364 | * for the src to fail | |
365 | */ | |
366 | debug (86,5)("ESIIncludeNew: Requesting alternate '%s'\n",attr[i+1]); | |
367 | assert (alt.getRaw() == NULL); /* TODO: FIXME */ | |
368 | alt = ESIStreamContextNew (this); | |
369 | assert (alt.getRaw() != NULL); | |
370 | alturl = xstrdup (attr[i+1]); | |
371 | } else if (!strcmp(attr[i],"onerror")) { | |
372 | if (!strcmp(attr[i+1], "continue")) { | |
373 | flags.onerrorcontinue = 1; | |
374 | } else { | |
375 | /* ignore mistyped attributes */ | |
376 | debug (86, 1)("invalid value for onerror='%s'\n", attr[i+1]); | |
377 | } | |
378 | } else { | |
379 | /* ignore mistyped attributes. TODO:? error on these for user feedback - config parameter needed | |
380 | */ | |
381 | } | |
382 | } | |
383 | ||
384 | varState = cbdataReference(aContext->varState); | |
385 | } | |
386 | ||
387 | void | |
388 | ESIInclude::start() | |
389 | { | |
390 | /* prevent freeing ourselves */ | |
391 | ESIIncludePtr foo(this); | |
392 | ||
393 | if (started) | |
394 | return; | |
395 | ||
396 | started = true; | |
397 | ||
398 | if (src.getRaw()) { | |
399 | Start (src, srcurl, varState); | |
400 | Start (alt, alturl, varState); | |
401 | } else { | |
402 | alt = NULL; | |
403 | ||
404 | debug (86,1)("ESIIncludeNew: esi:include with no src attributes\n"); | |
405 | ||
406 | flags.failed = 1; | |
407 | } | |
408 | } | |
409 | ||
410 | void | |
411 | ESIInclude::render(ESISegment::Pointer output) | |
412 | { | |
413 | if (sent) | |
414 | return; | |
415 | ||
416 | ESISegment::Pointer myout; | |
417 | ||
418 | debug (86, 5)("ESIIncludeRender: Rendering include %p\n", this); | |
419 | ||
420 | assert (flags.finished || (flags.failed && flags.onerrorcontinue)); | |
421 | ||
422 | if (flags.failed && flags.onerrorcontinue) { | |
423 | return; | |
424 | } | |
425 | ||
426 | /* Render the content */ | |
427 | if (srccontent.getRaw()) { | |
428 | myout = srccontent; | |
429 | srccontent = NULL; | |
430 | } else if (altcontent.getRaw()) { | |
431 | myout = altcontent; | |
432 | altcontent = NULL; | |
433 | } else | |
434 | fatal ("ESIIncludeRender called with no content, and no failure!\n"); | |
435 | ||
436 | assert (output->next == NULL); | |
437 | ||
438 | output->next = myout; | |
439 | ||
440 | sent = true; | |
441 | } | |
442 | ||
443 | esiProcessResult_t | |
444 | ESIInclude::process (int dovars) | |
445 | { | |
446 | /* Prevent refcount race leading to free */ | |
447 | Pointer me (this); | |
448 | start(); | |
449 | debug (86, 5)("ESIIncludeRender: Processing include %p\n", this); | |
450 | ||
451 | if (flags.failed) { | |
452 | if (flags.onerrorcontinue) | |
453 | return ESI_PROCESS_COMPLETE; | |
454 | else | |
455 | return ESI_PROCESS_FAILED; | |
456 | } | |
457 | ||
458 | if (!flags.finished) { | |
459 | if (flags.onerrorcontinue) | |
460 | return ESI_PROCESS_PENDING_WONTFAIL; | |
461 | else | |
462 | return ESI_PROCESS_PENDING_MAYFAIL; | |
463 | } | |
464 | ||
465 | return ESI_PROCESS_COMPLETE; | |
466 | } | |
467 | ||
468 | void | |
469 | ESIInclude::fail (ESIStreamContext::Pointer stream) | |
470 | { | |
471 | subRequestDone (stream, false); | |
472 | } | |
473 | ||
474 | bool | |
475 | ESIInclude::dataNeeded() const | |
476 | { | |
477 | return !(flags.finished || flags.failed); | |
478 | } | |
479 | ||
480 | void | |
481 | ESIInclude::subRequestDone (ESIStreamContext::Pointer stream, bool success) | |
482 | { | |
483 | assert (this); | |
484 | ||
485 | if (!dataNeeded()) | |
486 | return; | |
487 | ||
488 | if (stream == src) { | |
489 | debug (86,3)("ESIInclude::subRequestDone: %s\n", srcurl); | |
490 | ||
491 | if (success) { | |
492 | /* copy the lead segment */ | |
493 | debug (86,3)("ESIIncludeSubRequestDone: Src OK - include PASSED.\n"); | |
494 | assert (!srccontent.getRaw()); | |
495 | ESISegment::ListTransfer (stream->localbuffer, srccontent); | |
496 | /* we're done! */ | |
497 | flags.finished = 1; | |
498 | } else { | |
499 | /* Fail if there is no alt being retrieved */ | |
500 | debug (86,3)("ESIIncludeSubRequestDone: Src FAILED\n"); | |
501 | ||
502 | if (!(alt.getRaw() || altcontent.getRaw())) { | |
503 | debug (86,3)("ESIIncludeSubRequestDone: Include FAILED - No ALT\n"); | |
504 | flags.failed = 1; | |
505 | } else if (altcontent.getRaw()) { | |
506 | debug (86,3)("ESIIncludeSubRequestDone: Include PASSED - ALT already Complete\n"); | |
507 | /* ALT was already retrieved, we are done */ | |
508 | flags.finished = 1; | |
509 | } | |
510 | } | |
511 | ||
512 | src = NULL; | |
513 | } else if (stream == alt) { | |
514 | debug (86,3)("ESIInclude::subRequestDone: %s\n", alturl); | |
515 | ||
516 | if (success) { | |
517 | debug (86,3)("ESIIncludeSubRequestDone: ALT OK.\n"); | |
518 | /* copy the lead segment */ | |
519 | assert (!altcontent.getRaw()); | |
520 | ESISegment::ListTransfer (stream->localbuffer, altcontent); | |
521 | /* we're done! */ | |
522 | ||
523 | if (!(src.getRaw() || srccontent.getRaw())) { | |
524 | /* src already failed, kick ESI processor */ | |
525 | debug (86,3)("ESIIncludeSubRequestDone: Include PASSED - SRC already failed.\n"); | |
526 | flags.finished = 1; | |
527 | } | |
528 | } else { | |
529 | if (!(src.getRaw() || srccontent.getRaw())) { | |
530 | debug (86,3)("ESIIncludeSubRequestDone: ALT FAILED, Include FAILED - SRC already failed\n"); | |
531 | /* src already failed */ | |
532 | flags.failed = 1; | |
533 | } | |
534 | } | |
535 | ||
536 | alt = NULL; | |
537 | } else { | |
538 | fatal ("ESIIncludeSubRequestDone: non-owned stream found!\n"); | |
539 | } | |
540 | ||
541 | if (flags.finished || flags.failed) { | |
542 | /* Kick ESI Processor */ | |
2a2d937f | 543 | debugs (86, 5, "ESIInclude " << this << |
544 | " SubRequest " << stream.getRaw() << | |
545 | " completed, kicking processor , status " << | |
546 | (flags.finished ? "OK" : "FAILED")); | |
547 | /* There is a race condition - and we have no reproducible test case - | |
548 | * during a subrequest the parent will get set to NULL, which is not | |
549 | * meant to be possible. Rather than killing squid, we let it leak | |
550 | * memory but complain in the log. | |
551 | * | |
552 | * Someone wanting to debug this could well start by running squid with | |
553 | * a hardware breakpoint set to this location. | |
554 | * Its probably due to parent being set to null - by a call to | |
555 | * 'this.finish' while the subrequest is still not completed. | |
556 | */ | |
557 | if (parent.getRaw() == NULL) { | |
558 | debugs (86, 0, "ESIInclude::subRequestDone: Sub request completed " | |
559 | "after finish() called and parent unlinked. Unable to " | |
560 | "continue handling the request, and may be memory leaking. " | |
561 | "See http://www.squid-cache.org/bugs/show_bug.cgi?id=951 - we " | |
562 | "are looking for a reproducible test case. This will require " | |
563 | "an ESI template with includes, probably with alt-options, " | |
564 | "and we're likely to need traffic dumps to allow us to " | |
565 | "reconstruct the exact tcp handling sequences to trigger this " | |
566 | "rather elusive bug."); | |
567 | return; | |
568 | } | |
924f73bc | 569 | assert (parent.getRaw()); |
570 | ||
571 | if (!flags.failed) { | |
572 | sent = true; | |
573 | parent->provideData (srccontent.getRaw() ? srccontent:altcontent,this); | |
574 | ||
575 | if (srccontent.getRaw()) | |
576 | srccontent = NULL; | |
577 | else | |
578 | altcontent = NULL; | |
579 | } else if (flags.onerrorcontinue) { | |
580 | /* render nothing but inform of completion */ | |
581 | ||
582 | if (!sent) { | |
583 | sent = true; | |
584 | parent->provideData (new ESISegment, this); | |
585 | } else | |
586 | assert (0); | |
587 | } else | |
588 | parent->fail(this, "esi:include could not be completed."); | |
589 | } | |
590 | } | |
591 |