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Commit | Line | Data |
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cb69b4c7 | 1 | /* |
4ac4a490 | 2 | * Copyright (C) 1996-2017 The Squid Software Foundation and contributors |
e25c139f | 3 | * |
bbc27441 AJ |
4 | * Squid software is distributed under GPLv2+ license and includes |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
cb69b4c7 | 7 | */ |
8 | ||
bbc27441 AJ |
9 | /* DEBUG: section 58 HTTP Reply (Response) */ |
10 | ||
582c2af2 | 11 | #include "squid.h" |
1328cfb7 | 12 | #include "acl/AclSizeLimit.h" |
582c2af2 | 13 | #include "acl/FilledChecklist.h" |
81ab22b6 | 14 | #include "base/EnumIterator.h" |
582c2af2 | 15 | #include "globals.h" |
0521f8be | 16 | #include "HttpBody.h" |
7ebe76de | 17 | #include "HttpHdrCc.h" |
582c2af2 | 18 | #include "HttpHdrContRange.h" |
25b6a907 | 19 | #include "HttpHdrSc.h" |
582c2af2 | 20 | #include "HttpReply.h" |
0667cbfb | 21 | #include "HttpRequest.h" |
0eb49b6d | 22 | #include "MemBuf.h" |
4d5904f7 | 23 | #include "SquidConfig.h" |
582c2af2 FC |
24 | #include "SquidTime.h" |
25 | #include "Store.h" | |
28204b3b | 26 | #include "StrList.h" |
cb69b4c7 | 27 | |
63df1d28 | 28 | HttpReply::HttpReply() : Http::Message(hoReply), date (0), last_modified (0), |
f53969cc SM |
29 | expires (0), surrogate_control (NULL), content_range (NULL), keep_alive (0), |
30 | protoPrefix("HTTP/"), bodySizeMax(-2) | |
cb69b4c7 | 31 | { |
06a5ae20 | 32 | init(); |
cb69b4c7 | 33 | } |
34 | ||
06a5ae20 | 35 | HttpReply::~HttpReply() |
cb69b4c7 | 36 | { |
06a5ae20 | 37 | if (do_clean) |
38 | clean(); | |
cb69b4c7 | 39 | } |
40 | ||
41 | void | |
06a5ae20 | 42 | HttpReply::init() |
cb69b4c7 | 43 | { |
06a5ae20 | 44 | hdrCacheInit(); |
9b769c67 | 45 | sline.init(); |
fb654382 | 46 | pstate = Http::Message::psReadyToParseStartLine; |
06a5ae20 | 47 | do_clean = true; |
cb69b4c7 | 48 | } |
49 | ||
06a5ae20 | 50 | void HttpReply::reset() |
cb69b4c7 | 51 | { |
06a5ae20 | 52 | |
8596962e | 53 | // reset should not reset the protocol; could have made protoPrefix a |
54 | // virtual function instead, but it is not clear whether virtual methods | |
55 | // are allowed with MEMPROXY_CLASS() and whether some cbdata void* | |
56 | // conversions are not going to kill virtual tables | |
30abd221 | 57 | const String pfx = protoPrefix; |
06a5ae20 | 58 | clean(); |
59 | init(); | |
60 | protoPrefix = pfx; | |
61 | } | |
62 | ||
63 | void | |
64 | HttpReply::clean() | |
65 | { | |
26ac0430 | 66 | // we used to assert that the pipe is NULL, but now the message only |
5f8252d2 | 67 | // points to a pipe that is owned and initiated by another object. |
68 | body_pipe = NULL; | |
69 | ||
0521f8be | 70 | body.clear(); |
06a5ae20 | 71 | hdrCacheClean(); |
519e0948 | 72 | header.clean(); |
9b769c67 | 73 | sline.clean(); |
0667cbfb | 74 | bodySizeMax = -2; // hack: make calculatedBodySizeMax() false |
cb69b4c7 | 75 | } |
76 | ||
cb69b4c7 | 77 | void |
17802cf1 | 78 | HttpReply::packHeadersInto(Packable * p) const |
cb69b4c7 | 79 | { |
9b769c67 | 80 | sline.packInto(p); |
a9925b40 | 81 | header.packInto(p); |
785b508d | 82 | p->append("\r\n", 2); |
528b2c61 | 83 | } |
84 | ||
85 | void | |
1f28a150 | 86 | HttpReply::packInto(Packable * p) const |
528b2c61 | 87 | { |
06a5ae20 | 88 | packHeadersInto(p); |
0521f8be | 89 | body.packInto(p); |
cb69b4c7 | 90 | } |
91 | ||
06a5ae20 | 92 | /* create memBuf, create mem-based packer, pack, destroy packer, return MemBuf */ |
032785bf | 93 | MemBuf * |
1f28a150 | 94 | HttpReply::pack() const |
cb69b4c7 | 95 | { |
032785bf | 96 | MemBuf *mb = new MemBuf; |
2fe7eff9 | 97 | mb->init(); |
10201568 | 98 | packInto(mb); |
cb69b4c7 | 99 | return mb; |
100 | } | |
101 | ||
528b2c61 | 102 | HttpReply * |
11992b6f | 103 | HttpReply::make304() const |
cb69b4c7 | 104 | { |
789217a2 | 105 | static const Http::HdrType ImsEntries[] = {Http::HdrType::DATE, Http::HdrType::CONTENT_TYPE, Http::HdrType::EXPIRES, Http::HdrType::LAST_MODIFIED, /* eof */ Http::HdrType::OTHER}; |
62e76326 | 106 | |
06a5ae20 | 107 | HttpReply *rv = new HttpReply; |
728da2ee | 108 | int t; |
de336bbe | 109 | HttpHeaderEntry *e; |
cb69b4c7 | 110 | |
528b2c61 | 111 | /* rv->content_length; */ |
06a5ae20 | 112 | rv->date = date; |
113 | rv->last_modified = last_modified; | |
114 | rv->expires = expires; | |
115 | rv->content_type = content_type; | |
528b2c61 | 116 | /* rv->content_range */ |
117 | /* rv->keep_alive */ | |
2592bc70 | 118 | rv->sline.set(Http::ProtocolVersion(), Http::scNotModified, NULL); |
62e76326 | 119 | |
81ab22b6 | 120 | for (t = 0; ImsEntries[t] != Http::HdrType::OTHER; ++t) { |
a9925b40 | 121 | if ((e = header.findEntry(ImsEntries[t]))) |
eede25e7 | 122 | rv->header.addEntry(e->clone()); |
81ab22b6 | 123 | } |
62e76326 | 124 | |
0c90d3b1 DD |
125 | rv->putCc(cache_control); |
126 | ||
528b2c61 | 127 | /* rv->body */ |
128 | return rv; | |
129 | } | |
130 | ||
032785bf | 131 | MemBuf * |
1f28a150 | 132 | HttpReply::packed304Reply() const |
528b2c61 | 133 | { |
134 | /* Not as efficient as skipping the header duplication, | |
135 | * but easier to maintain | |
136 | */ | |
871c031f | 137 | HttpReply *temp = make304(); |
06a5ae20 | 138 | MemBuf *rv = temp->pack(); |
139 | delete temp; | |
528b2c61 | 140 | return rv; |
cb69b4c7 | 141 | } |
142 | ||
143 | void | |
955394ce | 144 | HttpReply::setHeaders(Http::StatusCode status, const char *reason, |
350e2aec | 145 | const char *ctype, int64_t clen, time_t lmt, time_t expiresTime) |
cb69b4c7 | 146 | { |
147 | HttpHeader *hdr; | |
2592bc70 | 148 | sline.set(Http::ProtocolVersion(), status, reason); |
06a5ae20 | 149 | hdr = &header; |
789217a2 FC |
150 | hdr->putStr(Http::HdrType::SERVER, visible_appname_string); |
151 | hdr->putStr(Http::HdrType::MIME_VERSION, "1.0"); | |
152 | hdr->putTime(Http::HdrType::DATE, squid_curtime); | |
62e76326 | 153 | |
d8b249ef | 154 | if (ctype) { |
789217a2 | 155 | hdr->putStr(Http::HdrType::CONTENT_TYPE, ctype); |
06a5ae20 | 156 | content_type = ctype; |
d8b249ef | 157 | } else |
30abd221 | 158 | content_type = String(); |
62e76326 | 159 | |
de336bbe | 160 | if (clen >= 0) |
789217a2 | 161 | hdr->putInt64(Http::HdrType::CONTENT_LENGTH, clen); |
62e76326 | 162 | |
350e2aec | 163 | if (expiresTime >= 0) |
789217a2 | 164 | hdr->putTime(Http::HdrType::EXPIRES, expiresTime); |
62e76326 | 165 | |
f53969cc | 166 | if (lmt > 0) /* this used to be lmt != 0 @?@ */ |
789217a2 | 167 | hdr->putTime(Http::HdrType::LAST_MODIFIED, lmt); |
62e76326 | 168 | |
06a5ae20 | 169 | date = squid_curtime; |
62e76326 | 170 | |
06a5ae20 | 171 | content_length = clen; |
62e76326 | 172 | |
350e2aec | 173 | expires = expiresTime; |
62e76326 | 174 | |
06a5ae20 | 175 | last_modified = lmt; |
cb69b4c7 | 176 | } |
177 | ||
6d38ef86 | 178 | void |
955394ce | 179 | HttpReply::redirect(Http::StatusCode status, const char *loc) |
6d38ef86 | 180 | { |
181 | HttpHeader *hdr; | |
2592bc70 | 182 | sline.set(Http::ProtocolVersion(), status, NULL); |
06a5ae20 | 183 | hdr = &header; |
789217a2 FC |
184 | hdr->putStr(Http::HdrType::SERVER, APP_FULLNAME); |
185 | hdr->putTime(Http::HdrType::DATE, squid_curtime); | |
186 | hdr->putInt64(Http::HdrType::CONTENT_LENGTH, 0); | |
187 | hdr->putStr(Http::HdrType::LOCATION, loc); | |
06a5ae20 | 188 | date = squid_curtime; |
189 | content_length = 0; | |
6d38ef86 | 190 | } |
191 | ||
528b2c61 | 192 | /* compare the validators of two replies. |
193 | * 1 = they match | |
194 | * 0 = they do not match | |
195 | */ | |
196 | int | |
06a5ae20 | 197 | HttpReply::validatorsMatch(HttpReply const * otherRep) const |
62e76326 | 198 | { |
30abd221 | 199 | String one,two; |
06a5ae20 | 200 | assert (otherRep); |
528b2c61 | 201 | /* Numbers first - easiest to check */ |
202 | /* Content-Length */ | |
203 | /* TODO: remove -1 bypass */ | |
62e76326 | 204 | |
06a5ae20 | 205 | if (content_length != otherRep->content_length |
206 | && content_length > -1 && | |
62e76326 | 207 | otherRep->content_length > -1) |
208 | return 0; | |
209 | ||
528b2c61 | 210 | /* ETag */ |
789217a2 | 211 | one = header.getStrOrList(Http::HdrType::ETAG); |
62e76326 | 212 | |
789217a2 | 213 | two = otherRep->header.getStrOrList(Http::HdrType::ETAG); |
62e76326 | 214 | |
a1377698 | 215 | if (one.size()==0 || two.size()==0 || one.caseCmp(two)!=0 ) { |
30abd221 | 216 | one.clean(); |
217 | two.clean(); | |
62e76326 | 218 | return 0; |
528b2c61 | 219 | } |
62e76326 | 220 | |
06a5ae20 | 221 | if (last_modified != otherRep->last_modified) |
62e76326 | 222 | return 0; |
223 | ||
528b2c61 | 224 | /* MD5 */ |
789217a2 | 225 | one = header.getStrOrList(Http::HdrType::CONTENT_MD5); |
62e76326 | 226 | |
789217a2 | 227 | two = otherRep->header.getStrOrList(Http::HdrType::CONTENT_MD5); |
62e76326 | 228 | |
a1377698 | 229 | if (one.size()==0 || two.size()==0 || one.caseCmp(two)!=0 ) { |
30abd221 | 230 | one.clean(); |
231 | two.clean(); | |
62e76326 | 232 | return 0; |
528b2c61 | 233 | } |
62e76326 | 234 | |
528b2c61 | 235 | return 1; |
236 | } | |
237 | ||
1a210de4 | 238 | bool |
06a5ae20 | 239 | HttpReply::updateOnNotModified(HttpReply const * freshRep) |
cb69b4c7 | 240 | { |
07947ad8 | 241 | assert(freshRep); |
1d7ab0f4 | 242 | |
1a210de4 EB |
243 | /* update raw headers */ |
244 | if (!header.update(&freshRep->header)) | |
245 | return false; | |
246 | ||
d8b249ef | 247 | /* clean cache */ |
06a5ae20 | 248 | hdrCacheClean(); |
1d7ab0f4 | 249 | |
394499bd | 250 | header.compact(); |
d8b249ef | 251 | /* init cache */ |
07947ad8 | 252 | hdrCacheInit(); |
1a210de4 EB |
253 | |
254 | return true; | |
cb69b4c7 | 255 | } |
256 | ||
d8b249ef | 257 | /* internal routines */ |
cb69b4c7 | 258 | |
06a5ae20 | 259 | time_t |
260 | HttpReply::hdrExpirationTime() | |
d20b1cd0 | 261 | { |
262 | /* The s-maxage and max-age directive takes priority over Expires */ | |
62e76326 | 263 | |
06a5ae20 | 264 | if (cache_control) { |
810d879f EB |
265 | int maxAge = -1; |
266 | /* | |
267 | * Conservatively handle the case when we have a max-age | |
268 | * header, but no Date for reference? | |
269 | */ | |
270 | if (cache_control->hasSMaxAge(&maxAge) || cache_control->hasMaxAge(&maxAge)) | |
271 | return (date >= 0) ? date + maxAge : squid_curtime; | |
d20b1cd0 | 272 | } |
62e76326 | 273 | |
f66a9ef4 | 274 | if (Config.onoff.vary_ignore_expire && |
789217a2 FC |
275 | header.has(Http::HdrType::VARY)) { |
276 | const time_t d = header.getTime(Http::HdrType::DATE); | |
277 | const time_t e = header.getTime(Http::HdrType::EXPIRES); | |
62e76326 | 278 | |
279 | if (d == e) | |
280 | return -1; | |
f66a9ef4 | 281 | } |
62e76326 | 282 | |
789217a2 FC |
283 | if (header.has(Http::HdrType::EXPIRES)) { |
284 | const time_t e = header.getTime(Http::HdrType::EXPIRES); | |
62e76326 | 285 | /* |
286 | * HTTP/1.0 says that robust implementations should consider | |
287 | * bad or malformed Expires header as equivalent to "expires | |
288 | * immediately." | |
289 | */ | |
290 | return e < 0 ? squid_curtime : e; | |
d20b1cd0 | 291 | } |
62e76326 | 292 | |
d20b1cd0 | 293 | return -1; |
294 | } | |
295 | ||
d8b249ef | 296 | /* sync this routine when you update HttpReply struct */ |
8596962e | 297 | void |
07947ad8 | 298 | HttpReply::hdrCacheInit() |
cb69b4c7 | 299 | { |
63df1d28 | 300 | Http::Message::hdrCacheInit(); |
07947ad8 | 301 | |
4a1acc56 | 302 | http_ver = sline.version; |
789217a2 FC |
303 | content_length = header.getInt64(Http::HdrType::CONTENT_LENGTH); |
304 | date = header.getTime(Http::HdrType::DATE); | |
305 | last_modified = header.getTime(Http::HdrType::LAST_MODIFIED); | |
a9925b40 | 306 | surrogate_control = header.getSc(); |
307 | content_range = header.getContRange(); | |
4a1acc56 | 308 | keep_alive = persistent() ? 1 : 0; |
789217a2 | 309 | const char *str = header.getStr(Http::HdrType::CONTENT_TYPE); |
62e76326 | 310 | |
d8b249ef | 311 | if (str) |
07947ad8 | 312 | content_type.limitInit(str, strcspn(str, ";\t ")); |
d8b249ef | 313 | else |
30abd221 | 314 | content_type = String(); |
62e76326 | 315 | |
d20b1cd0 | 316 | /* be sure to set expires after date and cache-control */ |
06a5ae20 | 317 | expires = hdrExpirationTime(); |
cb69b4c7 | 318 | } |
319 | ||
d8b249ef | 320 | /* sync this routine when you update HttpReply struct */ |
06a5ae20 | 321 | void |
322 | HttpReply::hdrCacheClean() | |
2ac76861 | 323 | { |
30abd221 | 324 | content_type.clean(); |
62e76326 | 325 | |
06a5ae20 | 326 | if (cache_control) { |
3d7782c1 | 327 | delete cache_control; |
06a5ae20 | 328 | cache_control = NULL; |
07947ad8 | 329 | } |
62e76326 | 330 | |
06a5ae20 | 331 | if (surrogate_control) { |
45a58345 | 332 | delete surrogate_control; |
06a5ae20 | 333 | surrogate_control = NULL; |
07947ad8 | 334 | } |
43ae1d95 | 335 | |
06a5ae20 | 336 | if (content_range) { |
3c670b50 | 337 | delete content_range; |
06a5ae20 | 338 | content_range = NULL; |
07947ad8 | 339 | } |
63259c34 | 340 | } |
cb69b4c7 | 341 | |
35282fbf | 342 | /* |
343 | * Returns the body size of a HTTP response | |
344 | */ | |
47f6e231 | 345 | int64_t |
60745f24 | 346 | HttpReply::bodySize(const HttpRequestMethod& method) const |
35282fbf | 347 | { |
06a5ae20 | 348 | if (sline.version.major < 1) |
1bda350e | 349 | return -1; |
c2a7cefd | 350 | else if (method.id() == Http::METHOD_HEAD) |
62e76326 | 351 | return 0; |
9b769c67 | 352 | else if (sline.status() == Http::scOkay) |
f53969cc | 353 | (void) 0; /* common case, continue */ |
9b769c67 | 354 | else if (sline.status() == Http::scNoContent) |
62e76326 | 355 | return 0; |
9b769c67 | 356 | else if (sline.status() == Http::scNotModified) |
62e76326 | 357 | return 0; |
9b769c67 | 358 | else if (sline.status() < Http::scOkay) |
62e76326 | 359 | return 0; |
360 | ||
06a5ae20 | 361 | return content_length; |
35282fbf | 362 | } |
8596962e | 363 | |
96ee497f AJ |
364 | /** |
365 | * Checks the first line of an HTTP Reply is valid. | |
366 | * currently only checks "HTTP/" exists. | |
367 | * | |
368 | * NP: not all error cases are detected yet. Some are left for detection later in parse. | |
369 | */ | |
370 | bool | |
84ae6223 | 371 | HttpReply::sanityCheckStartLine(const char *buf, const size_t hdr_len, Http::StatusCode *error) |
8596962e | 372 | { |
96ee497f AJ |
373 | // hack warning: using psize instead of size here due to type mismatches with MemBuf. |
374 | ||
375 | // content is long enough to possibly hold a reply | |
376 | // 4 being magic size of a 3-digit number plus space delimiter | |
84ae6223 | 377 | if (hdr_len < (size_t)(protoPrefix.psize() + 4)) { |
0246f6b8 | 378 | if (hdr_len > 0) { |
84ae6223 | 379 | debugs(58, 3, "Too small reply header (" << hdr_len << " bytes)"); |
955394ce | 380 | *error = Http::scInvalidHeader; |
0246f6b8 | 381 | } |
96ee497f AJ |
382 | return false; |
383 | } | |
384 | ||
e77d7ef0 | 385 | int pos; |
96ee497f | 386 | // catch missing or mismatched protocol identifier |
e77d7ef0 | 387 | // allow special-case for ICY protocol (non-HTTP identifier) in response to faked HTTP request. |
84ae6223 | 388 | if (strncmp(buf, "ICY", 3) == 0) { |
e77d7ef0 AJ |
389 | protoPrefix = "ICY"; |
390 | pos = protoPrefix.psize(); | |
dd20bfd3 | 391 | } else { |
8596962e | 392 | |
84ae6223 AJ |
393 | if (protoPrefix.cmp(buf, protoPrefix.size()) != 0) { |
394 | debugs(58, 3, "missing protocol prefix (" << protoPrefix << ") in '" << buf << "'"); | |
955394ce | 395 | *error = Http::scInvalidHeader; |
e77d7ef0 AJ |
396 | return false; |
397 | } | |
96ee497f | 398 | |
e77d7ef0 AJ |
399 | // catch missing or negative status value (negative '-' is not a digit) |
400 | pos = protoPrefix.psize(); | |
dd20bfd3 | 401 | |
e77d7ef0 | 402 | // skip arbitrary number of digits and a dot in the verion portion |
84ae6223 | 403 | while ((size_t)pos <= hdr_len && (*(buf+pos) == '.' || xisdigit(*(buf+pos)) ) ) ++pos; |
96ee497f | 404 | |
e77d7ef0 AJ |
405 | // catch missing version info |
406 | if (pos == protoPrefix.psize()) { | |
84ae6223 | 407 | debugs(58, 3, "missing protocol version numbers (ie. " << protoPrefix << "/1.0) in '" << buf << "'"); |
955394ce | 408 | *error = Http::scInvalidHeader; |
e77d7ef0 AJ |
409 | return false; |
410 | } | |
96ee497f AJ |
411 | } |
412 | ||
413 | // skip arbitrary number of spaces... | |
84ae6223 | 414 | while ((size_t)pos <= hdr_len && (char)*(buf+pos) == ' ') ++pos; |
96ee497f | 415 | |
84ae6223 AJ |
416 | if ((size_t)pos < hdr_len && !xisdigit(*(buf+pos))) { |
417 | debugs(58, 3, "missing or invalid status number in '" << buf << "'"); | |
955394ce | 418 | *error = Http::scInvalidHeader; |
96ee497f AJ |
419 | return false; |
420 | } | |
421 | ||
8596962e | 422 | return true; |
423 | } | |
424 | ||
9b769c67 AJ |
425 | bool |
426 | HttpReply::parseFirstLine(const char *blk_start, const char *blk_end) | |
429f7150 | 427 | { |
9b769c67 | 428 | return sline.parse(protoPrefix, blk_start, blk_end); |
429f7150 | 429 | } |
5c09dcb8 | 430 | |
fb525683 | 431 | /* handy: resets and returns -1 */ |
432 | int | |
433 | HttpReply::httpMsgParseError() | |
434 | { | |
63df1d28 | 435 | int result(Http::Message::httpMsgParseError()); |
fb525683 | 436 | /* indicate an error in the status line */ |
2592bc70 | 437 | sline.set(Http::ProtocolVersion(), Http::scInvalidHeader); |
fb525683 | 438 | return result; |
439 | } | |
440 | ||
5c09dcb8 | 441 | /* |
442 | * Indicate whether or not we would usually expect an entity-body | |
443 | * along with this response | |
444 | */ | |
445 | bool | |
60745f24 | 446 | HttpReply::expectingBody(const HttpRequestMethod& req_method, int64_t& theSize) const |
5c09dcb8 | 447 | { |
448 | bool expectBody = true; | |
449 | ||
c2a7cefd | 450 | if (req_method == Http::METHOD_HEAD) |
5c09dcb8 | 451 | expectBody = false; |
9b769c67 | 452 | else if (sline.status() == Http::scNoContent) |
5c09dcb8 | 453 | expectBody = false; |
9b769c67 | 454 | else if (sline.status() == Http::scNotModified) |
5c09dcb8 | 455 | expectBody = false; |
9b769c67 | 456 | else if (sline.status() < Http::scOkay) |
5c09dcb8 | 457 | expectBody = false; |
458 | else | |
459 | expectBody = true; | |
460 | ||
461 | if (expectBody) { | |
c3d0ba0c | 462 | if (header.chunked()) |
5c09dcb8 | 463 | theSize = -1; |
464 | else if (content_length >= 0) | |
465 | theSize = content_length; | |
466 | else | |
467 | theSize = -1; | |
468 | } | |
469 | ||
470 | return expectBody; | |
471 | } | |
0667cbfb | 472 | |
473 | bool | |
474 | HttpReply::receivedBodyTooLarge(HttpRequest& request, int64_t receivedSize) | |
475 | { | |
476 | calcMaxBodySize(request); | |
477 | debugs(58, 3, HERE << receivedSize << " >? " << bodySizeMax); | |
478 | return bodySizeMax >= 0 && receivedSize > bodySizeMax; | |
479 | } | |
480 | ||
481 | bool | |
482 | HttpReply::expectedBodyTooLarge(HttpRequest& request) | |
483 | { | |
484 | calcMaxBodySize(request); | |
485 | debugs(58, 7, HERE << "bodySizeMax=" << bodySizeMax); | |
486 | ||
487 | if (bodySizeMax < 0) // no body size limit | |
488 | return false; | |
489 | ||
490 | int64_t expectedSize = -1; | |
491 | if (!expectingBody(request.method, expectedSize)) | |
492 | return false; | |
26ac0430 | 493 | |
0667cbfb | 494 | debugs(58, 6, HERE << expectedSize << " >? " << bodySizeMax); |
495 | ||
496 | if (expectedSize < 0) // expecting body of an unknown length | |
497 | return false; | |
498 | ||
499 | return expectedSize > bodySizeMax; | |
500 | } | |
501 | ||
502 | void | |
b248c2a3 | 503 | HttpReply::calcMaxBodySize(HttpRequest& request) const |
0667cbfb | 504 | { |
505 | // hack: -2 is used as "we have not calculated max body size yet" state | |
506 | if (bodySizeMax != -2) // already tried | |
507 | return; | |
508 | bodySizeMax = -1; | |
509 | ||
4194f58d AJ |
510 | // short-circuit ACL testing if there are none configured |
511 | if (!Config.ReplyBodySize) | |
512 | return; | |
513 | ||
c0941a6a | 514 | ACLFilledChecklist ch(NULL, &request, NULL); |
b248c2a3 AJ |
515 | // XXX: cont-cast becomes irrelevant when checklist is HttpReply::Pointer |
516 | ch.reply = const_cast<HttpReply *>(this); | |
517 | HTTPMSGLOCK(ch.reply); | |
1328cfb7 | 518 | for (AclSizeLimit *l = Config.ReplyBodySize; l; l = l -> next) { |
b50e327b | 519 | /* if there is no ACL list or if the ACLs listed match use this size value */ |
06bf5384 | 520 | if (!l->aclList || ch.fastCheck(l->aclList).allowed()) { |
0667cbfb | 521 | debugs(58, 4, HERE << "bodySizeMax=" << bodySizeMax); |
522 | bodySizeMax = l->size; // may be -1 | |
523 | break; | |
524 | } | |
525 | } | |
526 | } | |
da33c835 | 527 | |
fa0e6114 | 528 | // XXX: check that this is sufficient for eCAP cloning |
da33c835 HN |
529 | HttpReply * |
530 | HttpReply::clone() const | |
531 | { | |
532 | HttpReply *rep = new HttpReply(); | |
66363092 | 533 | rep->sline = sline; // used in hdrCacheInit() call below |
da33c835 HN |
534 | rep->header.append(&header); |
535 | rep->hdrCacheInit(); | |
536 | rep->hdr_sz = hdr_sz; | |
f230832f HN |
537 | rep->http_ver = http_ver; |
538 | rep->pstate = pstate; | |
fa0e6114 AR |
539 | rep->body_pipe = body_pipe; |
540 | ||
66363092 | 541 | // keep_alive is handled in hdrCacheInit() |
da33c835 HN |
542 | return rep; |
543 | } | |
d67acb4e | 544 | |
63df1d28 AJ |
545 | bool |
546 | HttpReply::inheritProperties(const Http::Message *aMsg) | |
d67acb4e AJ |
547 | { |
548 | const HttpReply *aRep = dynamic_cast<const HttpReply*>(aMsg); | |
26ac0430 AJ |
549 | if (!aRep) |
550 | return false; | |
d67acb4e | 551 | keep_alive = aRep->keep_alive; |
88df846b | 552 | sources = aRep->sources; |
d67acb4e AJ |
553 | return true; |
554 | } | |
c679653d AR |
555 | |
556 | void HttpReply::removeStaleWarnings() | |
557 | { | |
558 | String warning; | |
789217a2 | 559 | if (header.getList(Http::HdrType::WARNING, &warning)) { |
c679653d AR |
560 | const String newWarning = removeStaleWarningValues(warning); |
561 | if (warning.size() && warning.size() == newWarning.size()) | |
562 | return; // some warnings are there and none changed | |
789217a2 | 563 | header.delById(Http::HdrType::WARNING); |
c679653d AR |
564 | if (newWarning.size()) { // some warnings left |
565 | HttpHeaderEntry *const e = | |
d5f18517 | 566 | new HttpHeaderEntry(Http::HdrType::WARNING, SBuf(), newWarning.termedBuf()); |
c679653d AR |
567 | header.addEntry(e); |
568 | } | |
569 | } | |
570 | } | |
571 | ||
572 | /** | |
573 | * Remove warning-values with warn-date different from Date value from | |
574 | * a single header entry. Returns a string with all valid warning-values. | |
575 | */ | |
576 | String HttpReply::removeStaleWarningValues(const String &value) | |
577 | { | |
578 | String newValue; | |
579 | const char *item = 0; | |
580 | int len = 0; | |
581 | const char *pos = 0; | |
582 | while (strListGetItem(&value, ',', &item, &len, &pos)) { | |
583 | bool keep = true; | |
584 | // Does warning-value have warn-date (which contains quoted date)? | |
585 | // We scan backwards, looking for two quoted strings. | |
586 | // warning-value = warn-code SP warn-agent SP warn-text [SP warn-date] | |
587 | const char *p = item + len - 1; | |
588 | ||
589 | while (p >= item && xisspace(*p)) --p; // skip whitespace | |
590 | ||
591 | // warning-value MUST end with quote | |
592 | if (p >= item && *p == '"') { | |
593 | const char *const warnDateEnd = p; | |
594 | --p; | |
595 | while (p >= item && *p != '"') --p; // find the next quote | |
596 | ||
597 | const char *warnDateBeg = p + 1; | |
598 | --p; | |
599 | while (p >= item && xisspace(*p)) --p; // skip whitespace | |
600 | ||
601 | if (p >= item && *p == '"' && warnDateBeg - p > 2) { | |
602 | // found warn-text | |
603 | String warnDate; | |
604 | warnDate.append(warnDateBeg, warnDateEnd - warnDateBeg); | |
605 | const time_t time = parse_rfc1123(warnDate.termedBuf()); | |
606 | keep = (time > 0 && time == date); // keep valid and matching date | |
607 | } | |
608 | } | |
609 | ||
610 | if (keep) { | |
611 | if (newValue.size()) | |
612 | newValue.append(", "); | |
613 | newValue.append(item, len); | |
614 | } | |
615 | } | |
616 | ||
617 | return newValue; | |
618 | } | |
f53969cc | 619 | |
eace013e EB |
620 | bool |
621 | HttpReply::olderThan(const HttpReply *them) const | |
622 | { | |
623 | if (!them || !them->date || !date) | |
624 | return false; | |
625 | return date < them->date; | |
626 | } | |
627 |